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| author | Arnd Bergmann <arnd@arndb.de> | 2018-01-18 14:16:38 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2018-06-01 00:30:10 +0100 |
| commit | 2957236b68e747eff5ab9176448b906042af9ff7 (patch) | |
| tree | a3ac77c6709ecc9faeda9186e8ebc129bb143424 /drivers | |
| parent | 97aa6ff70517ec6281981ade753e6abca3fa1b7e (diff) | |
| download | linux-2957236b68e747eff5ab9176448b906042af9ff7.tar.gz linux-2957236b68e747eff5ab9176448b906042af9ff7.tar.bz2 linux-2957236b68e747eff5ab9176448b906042af9ff7.zip | |
scsi: fas216: fix sense buffer initialization
commit 96d5eaa9bb74d299508d811d865c2c41b38b0301 upstream.
While testing with the ARM specific memset() macro removed, I ran into a
compiler warning that shows an old bug:
drivers/scsi/arm/fas216.c: In function 'fas216_rq_sns_done':
drivers/scsi/arm/fas216.c:2014:40: error: argument to 'sizeof' in 'memset' call is the same expression as the destination; did you mean to provide an explicit length? [-Werror=sizeof-pointer-memaccess]
It turns out that the definition of the scsi_cmd structure changed back
in linux-2.6.25, so now we clear only four bytes (sizeof(pointer))
instead of 96 (SCSI_SENSE_BUFFERSIZE). I did not check whether we
actually need to initialize the buffer here, but it's clear that if we
do it, we should use the correct size.
Fixes: de25deb18016 ("[SCSI] use dynamically allocated sense buffer")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/arm/fas216.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c index e85c40b6e19b..922e30b986b6 100644 --- a/drivers/scsi/arm/fas216.c +++ b/drivers/scsi/arm/fas216.c @@ -2009,7 +2009,7 @@ static void fas216_rq_sns_done(FAS216_Info *info, struct scsi_cmnd *SCpnt, * have valid data in the sense buffer that could * confuse the higher levels. */ - memset(SCpnt->sense_buffer, 0, sizeof(SCpnt->sense_buffer)); + memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); //printk("scsi%d.%c: sense buffer: ", info->host->host_no, '0' + SCpnt->device->id); //{ int i; for (i = 0; i < 32; i++) printk("%02x ", SCpnt->sense_buffer[i]); printk("\n"); } /* |