diff mbox series

scsi: sym53c8xx_2: fix sizeof mismatch

Message ID 20201006110252.536641-1-colin.king@canonical.com (mailing list archive)
State Accepted
Headers show
Series scsi: sym53c8xx_2: fix sizeof mismatch | expand

Commit Message

Colin King Oct. 6, 2020, 11:02 a.m. UTC 
From: Colin Ian King <colin.king@canonical.com>

An incorrect sizeof is being used, struct sym_ccb ** is not correct,
it should be struct sym_ccb *. Note that since ** is the same size as
* this is not causing any issues.  Improve this fix by using the
idiom sizeof(*np->ccbh) as this allows one to not even reference the
type of the pointer.

[ Note: this is an ancient 2005 buglet, the sha is from the
  tglx/history repo ]

Addresses-Coverity: ("Sizeof not portable (SIZEOF_MISMATCH)")
Fixes: 473c67f96e06 ("[PATCH] sym2 version 2.2.0")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/scsi/sym53c8xx_2/sym_hipd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Martin K. Petersen Oct. 8, 2020, 3:12 a.m. UTC | #1 
Colin,

> An incorrect sizeof is being used, struct sym_ccb ** is not correct,
> it should be struct sym_ccb *. Note that since ** is the same size as
> * this is not causing any issues.  Improve this fix by using the idiom
> sizeof(*np->ccbh) as this allows one to not even reference the type of
> the pointer.

Applied to 5.10/scsi-staging, thanks!
Martin K. Petersen Oct. 13, 2020, 10:42 p.m. UTC | #2 
On Tue, 6 Oct 2020 12:02:52 +0100, Colin King wrote:

> An incorrect sizeof is being used, struct sym_ccb ** is not correct,
> it should be struct sym_ccb *. Note that since ** is the same size as
> * this is not causing any issues.  Improve this fix by using the
> idiom sizeof(*np->ccbh) as this allows one to not even reference the
> type of the pointer.
> 
> [ Note: this is an ancient 2005 buglet, the sha is from the
>   tglx/history repo ]

Applied to 5.10/scsi-queue, thanks!

[1/1] scsi: sym53c8xx_2: Fix sizeof() mismatch
      https://git.kernel.org/mkp/scsi/c/1725ba8d6ff1
diff mbox series

Patch

diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index cc11daa1222b..14118dd70711 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -5656,7 +5656,7 @@  int sym_hcb_attach(struct Scsi_Host *shost, struct sym_fw *fw, struct sym_nvram
 	/*
 	 *  Allocate the array of lists of CCBs hashed by DSA.
 	 */
-	np->ccbh = kcalloc(CCB_HASH_SIZE, sizeof(struct sym_ccb **), GFP_KERNEL);
+	np->ccbh = kcalloc(CCB_HASH_SIZE, sizeof(*np->ccbh), GFP_KERNEL);
 	if (!np->ccbh)
 		goto attach_failed;