The patch titled
Subject: ALSA: pcm: use krealloc_array()
has been added to the -mm tree. Its filename is
alsa-pcm-use-krealloc_array.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/alsa-pcm-use-krealloc_array.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/alsa-pcm-use-krealloc_array.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Subject: ALSA: pcm: 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/20201109110654.12547-4-brgl@xxxxxxxx
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Reviewed-by: Takashi Iwai <tiwai@xxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: Christian Knig <christian.koenig@xxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Gustavo Padovan <gustavo@xxxxxxxxxxx>
Cc: James Morse <james.morse@xxxxxxx>
Cc: Jaroslav Kysela <perex@xxxxxxxx>
Cc: Jason Wang <jasowang@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: "Michael S . Tsirkin" <mst@xxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Robert Richter <rric@xxxxxxxxxx>
Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
sound/core/pcm_lib.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/sound/core/pcm_lib.c~alsa-pcm-use-krealloc_array
+++ a/sound/core/pcm_lib.c
@@ -1129,8 +1129,8 @@ int snd_pcm_hw_rule_add(struct snd_pcm_r
if (constrs->rules_num >= constrs->rules_all) {
struct snd_pcm_hw_rule *new;
unsigned int new_rules = constrs->rules_all + 16;
- new = krealloc(constrs->rules, new_rules * sizeof(*c),
- GFP_KERNEL);
+ new = krealloc_array(constrs->rules, new_rules,
+ sizeof(*c), GFP_KERNEL);
if (!new) {
va_end(args);
return -ENOMEM;
_
Patches currently in -mm which might be from bgolaszewski@xxxxxxxxxxxx are
mm-slab-clarify-kreallocs-behavior-with-__gfp_zero.patch
mm-slab-provide-krealloc_array.patch
alsa-pcm-use-krealloc_array.patch
vhost-vringh-use-krealloc_array.patch
pinctrl-use-krealloc_array.patch
edac-ghes-use-krealloc_array.patch
drm-atomic-use-krealloc_array.patch
hwtracing-intel-use-krealloc_array.patch
dma-buf-use-krealloc_array.patch
