Avoid various warnings from "make C=1" by annotating a couple of
unlock-then-lock sequences, replacing a zero with NULL and
correcting some type casts.
Also avoid a warning from "make W=1" by adding braces.
Signed-off-by: Finn Thain <fth...@telegraphics.com.au>
---
These are the warning messages referred to above:
drivers/scsi/NCR5380.c:
warning: context imbalance in 'NCR5380_select' - unexpected unlock
warning: context imbalance in 'NCR5380_information_transfer' - unexpected unlock
drivers/scsi/atari_scsi.c:816:39: warning: Using plain integer as NULL pointer
drivers/scsi/mac_scsi.c:157:46: warning: incorrect type in initializer
(different address spaces)
drivers/scsi/mac_scsi.c:157:46: expected unsigned char *s
drivers/scsi/mac_scsi.c:157:46: got unsigned char [noderef] [usertype]
<asn:2>*
drivers/scsi/mac_scsi.c:260:46: warning: incorrect type in initializer
(different address spaces)
drivers/scsi/mac_scsi.c:260:46: expected unsigned char *d
drivers/scsi/mac_scsi.c:260:46: got unsigned char [noderef] [usertype]
<asn:2>*
drivers/scsi/mac_scsi.c:384:22: warning: incorrect type in assignment
(different address spaces)
drivers/scsi/mac_scsi.c:384:22: expected unsigned char [noderef] [usertype]
<asn:2>*io
drivers/scsi/mac_scsi.c:384:22: got void *<noident>
drivers/scsi/mac_scsi.c:387:35: warning: incorrect type in assignment
(different address spaces)
drivers/scsi/mac_scsi.c:387:35: expected unsigned char [noderef] [usertype]
<asn:2>*pdma_io
drivers/scsi/mac_scsi.c:387:35: got void *<noident>
drivers/scsi/NCR5380.c: In function 'maybe_release_dma_irq':
drivers/scsi/NCR5380.c:626:36: warning: suggest braces around empty body in an
'if' statement [-Wempty-body]
NCR5380_release_dma_irq(instance);
Avoiding these messages doesn't fix any bugs but may improve the
signal/noise ratio of static checker output.
---
drivers/scsi/NCR5380.c | 5 ++++-
drivers/scsi/atari_scsi.c | 2 +-
drivers/scsi/mac_scsi.c | 8 ++++----
3 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index f29b407..518d101 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -591,8 +591,9 @@ static inline void maybe_release_dma_irq(struct Scsi_Host
*instance)
list_empty(&hostdata->unissued) &&
list_empty(&hostdata->autosense) &&
!hostdata->connected &&
- !hostdata->selecting)
+ !hostdata->selecting) {
NCR5380_release_dma_irq(instance);
+ }
}
/**
@@ -931,6 +932,7 @@ static irqreturn_t __maybe_unused NCR5380_intr(int irq,
void *dev_id)
static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
struct scsi_cmnd *cmd)
+ __releases(&hostdata->lock) __acquires(&hostdata->lock)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
unsigned char tmp[3], phase;
@@ -1623,6 +1625,7 @@ static int NCR5380_transfer_dma(struct Scsi_Host
*instance,
*/
static void NCR5380_information_transfer(struct Scsi_Host *instance)
+ __releases(&hostdata->lock) __acquires(&hostdata->lock)
{
struct NCR5380_hostdata *hostdata = shost_priv(instance);
unsigned char msgout = NOP;
diff --git a/drivers/scsi/atari_scsi.c b/drivers/scsi/atari_scsi.c
index 2b6eb7c..b2ffab65 100644
--- a/drivers/scsi/atari_scsi.c
+++ b/drivers/scsi/atari_scsi.c
@@ -782,7 +782,7 @@ static int __init atari_scsi_probe(struct platform_device
*pdev)
return -ENOMEM;
}
atari_dma_phys_buffer = atari_stram_to_phys(atari_dma_buffer);
- atari_dma_orig_addr = 0;
+ atari_dma_orig_addr = NULL;
}
instance = scsi_host_alloc(&atari_scsi_template,
diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c
index ccb68d1..196acc7 100644
--- a/drivers/scsi/mac_scsi.c
+++ b/drivers/scsi/mac_scsi.c
@@ -154,7 +154,7 @@ __asm__ __volatile__
\
static inline int macscsi_pread(struct NCR5380_hostdata *hostdata,
unsigned char *dst, int len)
{
- unsigned char *s = hostdata->pdma_io + (INPUT_DATA_REG << 4);
+ u8 __iomem *s = hostdata->pdma_io + (INPUT_DATA_REG << 4);
unsigned char *d = dst;
int n = len;
int transferred;
@@ -257,7 +257,7 @@ static inline int macscsi_pwrite(struct NCR5380_hostdata
*hostdata,
unsigned char *src, int len)
{
unsigned char *s = src;
- unsigned char *d = hostdata->pdma_io + (OUTPUT_DATA_REG << 4);
+ u8 __iomem *d = hostdata->pdma_io + (OUTPUT_DATA_REG << 4);
int n = len;
int transferred;
@@ -381,10 +381,10 @@ static int __init mac_scsi_probe(struct platform_device
*pdev)
hostdata = shost_priv(instance);
hostdata->base = pio_mem->start;
- hostdata->io = (void *)pio_mem->start;
+ hostdata->io = (u8 __iomem *)pio_mem->start;
if (pdma_mem && setup_use_pdma)
- hostdata->pdma_io = (void *)pdma_mem->start;
+ hostdata->pdma_io = (u8 __iomem *)pdma_mem->start;
else
host_flags |= FLAG_NO_PSEUDO_DMA;
--
2.10.2
--
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