Commit b9b916ae authored by Ben Dooks's avatar Ben Dooks Committed by Palmer Dabbelt

riscv: uaccess: fix type of 0 variable on error in get_user()

If the get_user(x, ptr) has x as a pointer, then the setting
of (x) = 0 is going to produce the following sparse warning,
so fix this by forcing the type of 'x' when access_ok() fails.

fs/aio.c:2073:21: warning: Using plain integer as NULL pointer
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
Reviewed-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/20221229170545.718264-1-ben-linux@fluff.org
Cc: stable@vger.kernel.org
Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent b2d473a6
...@@ -165,7 +165,7 @@ do { \ ...@@ -165,7 +165,7 @@ do { \
might_fault(); \ might_fault(); \
access_ok(__p, sizeof(*__p)) ? \ access_ok(__p, sizeof(*__p)) ? \
__get_user((x), __p) : \ __get_user((x), __p) : \
((x) = 0, -EFAULT); \ ((x) = (__force __typeof__(x))0, -EFAULT); \
}) })
#define __put_user_asm(insn, x, ptr, err) \ #define __put_user_asm(insn, x, ptr, err) \
......
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