ARM: S3C: NAND: Check the existence of nr_map before copying
Since the structure field nr_map is optional, we need to check whether the chip number map is provided to avoid unexpected NULL pointer exception. Signed-off-by: Ramax Lo <ramaxlo@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>hifive-unleashed-5.1
parent
004b350632
commit
9b96918a97
|
@ -58,8 +58,8 @@ static int __init s3c_nand_copy_set(struct s3c2410_nand_set *set)
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
}
|
}
|
||||||
|
|
||||||
size = sizeof(int) * set->nr_chips;
|
if (set->nr_map && set->nr_chips) {
|
||||||
if (size) {
|
size = sizeof(int) * set->nr_chips;
|
||||||
ptr = kmemdup(set->nr_map, size, GFP_KERNEL);
|
ptr = kmemdup(set->nr_map, size, GFP_KERNEL);
|
||||||
set->nr_map = ptr;
|
set->nr_map = ptr;
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue