diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2022-12-29 17:05:45 +0000 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-01-05 12:30:41 -0800 |
| commit | b9b916aee6715cd7f3318af6dc360c4729417b94 (patch) | |
| tree | 32cc8c04daa042a99e9ca6c530757984d1f71089 | |
| parent | b2d473a6019ef9a54b0156ecdb2e0398c9fa6a24 (diff) | |
| download | pci-b9b916aee6715cd7f3318af6dc360c4729417b94.tar.gz | |
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: Ben Dooks <ben-linux@fluff.org>
Reviewed-by: Palmer 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: Palmer Dabbelt <palmer@rivosinc.com>
| -rw-r--r-- | arch/riscv/include/asm/uaccess.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h index 855450bed9f52c..ec0cab9fbddd0d 100644 --- a/arch/riscv/include/asm/uaccess.h +++ b/arch/riscv/include/asm/uaccess.h @@ -165,7 +165,7 @@ do { \ might_fault(); \ access_ok(__p, sizeof(*__p)) ? \ __get_user((x), __p) : \ - ((x) = 0, -EFAULT); \ + ((x) = (__force __typeof__(x))0, -EFAULT); \ }) #define __put_user_asm(insn, x, ptr, err) \ |