[PATCH] target/configfs: Remove unnecessary null test
This patch removes the null test on lun_cg. lun_cg is initialized at the beginning of the function to lun-lun_group. Since lun_cg is dereferenced prior to the null test, it must be a valid pointer. The following Coccinelle script is used for detecting the change: @r@ expression e,f; identifier g,y; statement S1,S2; @@ *e = f-g +... f-y ...+ *if (e != NULL || ...) S1 else S2 Signed-off-by: Himangi Saraogi himangi...@gmail.com Acked-by: Julia Lawall julia.law...@lip6.fr --- drivers/target/target_core_fabric_configfs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index 7de9f04..7228a18 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -917,8 +917,7 @@ static struct config_group *target_fabric_make_lun( return lun-lun_group; out: - if (lun_cg) - kfree(lun_cg-default_groups); + kfree(lun_cg-default_groups); return ERR_PTR(errno); } -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH] qla4xxx: Return -ENOMEM on memory allocation failure
In this code, 0 is returned on memory allocation failure, even though
other failures return -ENOMEM or other similar values.
A simplified version of the Coccinelle semantic match that finds this
problem is as follows:
// smpl
@@
expression ret;
expression x,e1,e2,e3;
identifier alloc;
@@
ret = 0
... when != ret = e1
*x = alloc(...)
... when != ret = e2
if (x == NULL) { ... when != ret = e3
return ret;
}
// /smpl
Signed-off-by: Himangi Saraogi himangi...@gmail.com
Acked-by: Julia Lawall julia.law...@lip6.fr
---
drivers/scsi/qla4xxx/ql4_os.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index c5d9564..72ba671 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -1050,6 +1050,7 @@ static int qla4xxx_get_host_stats(struct Scsi_Host
*shost, char *buf, int len)
if (!ql_iscsi_stats) {
ql4_printk(KERN_ERR, ha,
Unable to allocate memory for iscsi stats\n);
+ ret = -ENOMEM;
goto exit_host_stats;
}
--
1.9.1
--
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[PATCH] isym53c8xx_2/sym_malloc: Drop cast
This patch does away with cast on void * and the if as it is unnecessary. The following Coccinelle semantic patch was used for making the change: @r@ expression x; void* e; type T; identifier f; @@ ( *((T *)e) | ((T *)x)[...] | ((T *)x)-f | - (T *) e ) Signed-off-by: Himangi Saraogi himangi...@gmail.com --- To send to: Matthew Wilcox matt...@wil.cx,James E.J. Bottomley jbottom...@parallels.com,linux-scsi@vger.kernel.org,linux-ker...@vger.kernel.org drivers/scsi/sym53c8xx_2/sym_malloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/sym53c8xx_2/sym_malloc.c b/drivers/scsi/sym53c8xx_2/sym_malloc.c index 6f9af0d..1dde1e9 100644 --- a/drivers/scsi/sym53c8xx_2/sym_malloc.c +++ b/drivers/scsi/sym53c8xx_2/sym_malloc.c @@ -95,7 +95,7 @@ static void *___sym_malloc(m_pool_p mp, int size) } } #ifdef DEBUG - printf(___sym_malloc(%d) = %p\n, size, (void *) a); + printf(___sym_malloc(%d) = %p\n, size, a); #endif return a; } -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH] aic7xxx: Use kstrdup
Use kstrdup when the goal of an allocation is copy a string into the allocated region. The Coccinelle semantic patch that makes this change is as follows: // smpl @@ expression from,to; expression flag,E1,E2; statement S; @@ - to = kmalloc(strlen(from) + 1,flag); + to = kstrdup(from, flag); ... when != \(from = E1 \| to = E1 \) if (to==NULL || ...) S ... when != \(from = E2 \| to = E2 \) - strcpy(to, from); // /smpl Signed-off-by: Himangi Saraogi himangi...@gmail.com Acked-by: Julia Lawall julia.law...@lip6.fr --- drivers/scsi/aic7xxx/aic7xxx_osm_pci.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c index ee05e84..0fc14da 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c @@ -225,10 +225,9 @@ ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ahc_get_pci_bus(pci), ahc_get_pci_slot(pci), ahc_get_pci_function(pci)); - name = kmalloc(strlen(buf) + 1, GFP_ATOMIC); + name = kstrdup(buf, GFP_ATOMIC); if (name == NULL) return (-ENOMEM); - strcpy(name, buf); ahc = ahc_alloc(NULL, name); if (ahc == NULL) return (-ENOMEM); -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH] aic7xxx/aic7770 : Use kstrdup
Use kstrdup when the goal of an allocation is copy a string into the allocated region. The semantic patch that makes this change is as follows: // smpl @@ expression from,to; expression flag,E1,E2; statement S; @@ - to = kmalloc(strlen(from) + 1,flag); + to = kstrdup(from, flag); ... when != \(from = E1 \| to = E1 \) if (to==NULL || ...) S ... when != \(from = E2 \| to = E2 \) - strcpy(to, from); // /smpl Signed-off-by: Himangi Saraogi himangi...@gmail.com Acked-by: Julia Lawall julia.law...@lip6.fr --- drivers/scsi/aic7xxx/aic7770_osm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic7770_osm.c b/drivers/scsi/aic7xxx/aic7770_osm.c index 0cb8ef6..3d401d0 100644 --- a/drivers/scsi/aic7xxx/aic7770_osm.c +++ b/drivers/scsi/aic7xxx/aic7770_osm.c @@ -85,10 +85,9 @@ aic7770_probe(struct device *dev) int error; sprintf(buf, ahc_eisa:%d, eisaBase 12); - name = kmalloc(strlen(buf) + 1, GFP_ATOMIC); + name = kstrdup(buf, GFP_ATOMIC); if (name == NULL) return (ENOMEM); - strcpy(name, buf); ahc = ahc_alloc(aic7xxx_driver_template, name); if (ahc == NULL) return (ENOMEM); -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH] aic7xxx/aic79xx : Use kstrdup
Use kstrdup when the goal of an allocation is copy a string into the allocated region. The semantic patch that makes this change is as follows: // smpl @@ expression from,to; expression flag,E1,E2; statement S; @@ - to = kmalloc(strlen(from) + 1,flag); + to = kstrdup(from, flag); ... when != \(from = E1 \| to = E1 \) if (to==NULL || ...) S ... when != \(from = E2 \| to = E2 \) - strcpy(to, from); // /smpl Signed-off-by: Himangi Saraogi himangi...@gmail.com Acked-by: Julia Lawall julia.law...@lip6.fr --- drivers/scsi/aic7xxx/aic79xx_osm_pci.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic79xx_osm_pci.c b/drivers/scsi/aic7xxx/aic79xx_osm_pci.c index 3c85873..8466aa7 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm_pci.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm_pci.c @@ -178,10 +178,9 @@ ahd_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ahd_get_pci_bus(pci), ahd_get_pci_slot(pci), ahd_get_pci_function(pci)); - name = kmalloc(strlen(buf) + 1, GFP_ATOMIC); + name = kstrdup(buf, GFP_ATOMIC); if (name == NULL) return (-ENOMEM); - strcpy(name, buf); ahd = ahd_alloc(NULL, name); if (ahd == NULL) return (-ENOMEM); -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
