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xfs: Use kvcalloc() instead of kvzalloc() 

Bugzilla: https://bugzilla.redhat.com/2125724

Use 2-factor argument multiplication form kvcalloc() instead of
kvzalloc().

Link: https://github.com/KSPP/linux/issues/162
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
(cherry picked from commit a785fba7df9a80098c71dd65df0923e6018ac0d5)
This commit is contained in:
Carlos Maiolino 2022-10-21 12:50:46 +02:00
parent 16bcab8cde
commit a8614f76ea
1 changed files with 3 additions and 3 deletions
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6
fs/xfs/xfs_ioctl.c
View File

@ -1551,7 +1551,7 @@ xfs_ioc_getbmap(
if (bmx.bmv_count > ULONG_MAX / recsize)
return -ENOMEM;
buf = kvzalloc(bmx.bmv_count * sizeof(*buf), GFP_KERNEL);
buf = kvcalloc(bmx.bmv_count, sizeof(*buf), GFP_KERNEL);
if (!buf)
return -ENOMEM;
@ -1605,11 +1605,11 @@ xfs_ioc_getfsmap(
*/
count = min_t(unsigned int, head.fmh_count,
131072 / sizeof(struct fsmap));
recs = kvzalloc(count * sizeof(struct fsmap), GFP_KERNEL);
recs = kvcalloc(count, sizeof(struct fsmap), GFP_KERNEL);
if (!recs) {
count = min_t(unsigned int, head.fmh_count,
PAGE_SIZE / sizeof(struct fsmap));
recs = kvzalloc(count * sizeof(struct fsmap), GFP_KERNEL);
recs = kvcalloc(count, sizeof(struct fsmap), GFP_KERNEL);
if (!recs)
return -ENOMEM;
}