[PATCH 1/2 RESEND] staging: ks7010: return on failure

2016-09-04 Thread Sudip Mukherjee
On failure we were jumping to error_out0 where we were trying
sdio_release_host() but at this point of execution we still have not
done sdio_claim_host() and as a result host->claimed can still be 0.
And if host->claimed is 0 then WARN_ON(!host->claimed) will give
a warning.
Moreover, if it is still not claimed then mmc_host->claim_cnt will be 0
and mmc_release_host() will do "if (--host->claim_cnt)" and thus the
condition will become true.
Lets just return the value on allocation failure instead of trying to
release the host before claiming it.

Signed-off-by: Sudip Mukherjee 
---

resending both as GregKH asked to add the maintainers email. Though
MAINTAINERS is not having an entry for this.

 drivers/staging/ks7010/ks7010_sdio.c | 6 ++
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/ks7010/ks7010_sdio.c 
b/drivers/staging/ks7010/ks7010_sdio.c
index 47b69cb..7bcf1ea 100644
--- a/drivers/staging/ks7010/ks7010_sdio.c
+++ b/drivers/staging/ks7010/ks7010_sdio.c
@@ -776,10 +776,8 @@ static int ks7010_upload_firmware(struct ks_wlan_private 
*priv,
 
/* buffer allocate */
rom_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL);
-   if (!rom_buf) {
-   rc = 3;
-   goto error_out0;
-   }
+   if (!rom_buf)
+   return 3;
 
sdio_claim_host(card->func);
 
-- 
1.9.1



[PATCH 1/2 RESEND] staging: ks7010: return on failure

2016-09-04 Thread Sudip Mukherjee
On failure we were jumping to error_out0 where we were trying
sdio_release_host() but at this point of execution we still have not
done sdio_claim_host() and as a result host->claimed can still be 0.
And if host->claimed is 0 then WARN_ON(!host->claimed) will give
a warning.
Moreover, if it is still not claimed then mmc_host->claim_cnt will be 0
and mmc_release_host() will do "if (--host->claim_cnt)" and thus the
condition will become true.
Lets just return the value on allocation failure instead of trying to
release the host before claiming it.

Signed-off-by: Sudip Mukherjee 
---

resending both as GregKH asked to add the maintainers email. Though
MAINTAINERS is not having an entry for this.

 drivers/staging/ks7010/ks7010_sdio.c | 6 ++
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/ks7010/ks7010_sdio.c 
b/drivers/staging/ks7010/ks7010_sdio.c
index 47b69cb..7bcf1ea 100644
--- a/drivers/staging/ks7010/ks7010_sdio.c
+++ b/drivers/staging/ks7010/ks7010_sdio.c
@@ -776,10 +776,8 @@ static int ks7010_upload_firmware(struct ks_wlan_private 
*priv,
 
/* buffer allocate */
rom_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL);
-   if (!rom_buf) {
-   rc = 3;
-   goto error_out0;
-   }
+   if (!rom_buf)
+   return 3;
 
sdio_claim_host(card->func);
 
-- 
1.9.1