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authorBartosz Golaszewski <[email protected]>2020-12-14 19:04:03 -0800
committerLinus Torvalds <[email protected]>2020-12-15 12:13:37 -0800
commit3a99974872ccb2f625c68a7444e7575f1c7fd06d (patch)
tree4ea8334a32e2f08d0790879bde54dc04646b5308
parent64f0bd11696508feff896215c74496e3e9af617e (diff)
vhost: vringh: use krealloc_array()
Use the helper that checks for overflows internally instead of manually calculating the size of the new array. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Bartosz Golaszewski <[email protected]> Acked-by: Michael S. Tsirkin <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andy Shevchenko <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Christian Knig <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: David Airlie <[email protected]> Cc: David Rientjes <[email protected]> Cc: Gustavo Padovan <[email protected]> Cc: James Morse <[email protected]> Cc: Jaroslav Kysela <[email protected]> Cc: Jason Wang <[email protected]> Cc: Joonsoo Kim <[email protected]> Cc: Linus Walleij <[email protected]> Cc: Maarten Lankhorst <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Cc: Maxime Ripard <[email protected]> Cc: Pekka Enberg <[email protected]> Cc: Robert Richter <[email protected]> Cc: Sumit Semwal <[email protected]> Cc: Takashi Iwai <[email protected]> Cc: Takashi Iwai <[email protected]> Cc: Thomas Zimmermann <[email protected]> Cc: Tony Luck <[email protected]> Cc: Vlastimil Babka <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r--drivers/vhost/vringh.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index b7403ba8e7f7..85d85faba058 100644
--- a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -198,7 +198,8 @@ static int resize_iovec(struct vringh_kiov *iov, gfp_t gfp)
flag = (iov->max_num & VRINGH_IOV_ALLOCATED);
if (flag)
- new = krealloc(iov->iov, new_num * sizeof(struct iovec), gfp);
+ new = krealloc_array(iov->iov, new_num,
+ sizeof(struct iovec), gfp);
else {
new = kmalloc_array(new_num, sizeof(struct iovec), gfp);
if (new) {