mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

dmaengine: sh: Use bitmap_zalloc() when applicable 

'shdma_slave_used' is a bitmap. So use 'bitmap_zalloc()' to simplify code,
improve the semantic and avoid some open-coded arithmetic in allocator
arguments.

Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
consistency.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/3efaf2784424ae3d7411dc47f8b6b03e7bb8c059.1637702701.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Christophe JAILLET 2021-11-23 22:26:18 +01:00 committed by Vinod Koul
parent de8f2c0575
commit d5aeba456e
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/dma/sh/shdma-base.c
View File

@ -1042,9 +1042,7 @@ EXPORT_SYMBOL(shdma_cleanup);
static int __init shdma_enter(void)
{
shdma_slave_used = kcalloc(DIV_ROUND_UP(slave_num, BITS_PER_LONG),
sizeof(long),
GFP_KERNEL);
shdma_slave_used = bitmap_zalloc(slave_num, GFP_KERNEL);
if (!shdma_slave_used)
return -ENOMEM;
return 0;
@ -1053,7 +1051,7 @@ module_init(shdma_enter);
static void __exit shdma_exit(void)
{
kfree(shdma_slave_used);
bitmap_free(shdma_slave_used);
}
module_exit(shdma_exit);