author: Christoph Hellwig <hch@lst.de> 2020-06-17 09:37:53 +0200
committer: Linus Torvalds <torvalds@linux-foundation.org> 2020-06-17 10:57:41 -0700
commit: fe557319aa06c23cffc9346000f119547e0f289a
parent: b3a9e3b9622ae10064826dccb4f7a52bd88c7407
Commit Summary:
Diffstat:
1 file changed, 4 insertions, 2 deletions
diff --git a/drivers/dio/dio.c b/drivers/dio/dio.c
index c9aa15fb86a9..193b40e7aec0 100644
--- a/drivers/dio/dio.c
+++ b/drivers/dio/dio.c
@@ -135,7 +135,8 @@ int __init dio_find(int deviceid)
else
va = ioremap(pa, PAGE_SIZE);
- if (probe_kernel_read(&i, (unsigned char *)va + DIO_IDOFF, 1)) {
+ if (copy_from_kernel_nofault(&i,
+ (unsigned char *)va + DIO_IDOFF, 1)) {
if (scode >= DIOII_SCBASE)
iounmap(va);
continue; /* no board present at that select code */
@@ -208,7 +209,8 @@ static int __init dio_init(void)
else
va = ioremap(pa, PAGE_SIZE);
- if (probe_kernel_read(&i, (unsigned char *)va + DIO_IDOFF, 1)) {
+ if (copy_from_kernel_nofault(&i,
+ (unsigned char *)va + DIO_IDOFF, 1)) {
if (scode >= DIOII_SCBASE)
iounmap(va);
continue; /* no board present at that select code */