diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2022-12-29 17:05:45 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-12 12:02:50 +0100 |
| commit | 36fd385ae2ca04a95e34f52a188e3aaf985e757f (patch) | |
| tree | ec1005531ac3bbedc550eaf298b9480b812cce83 /arch/riscv | |
| parent | 7f56c4fa299a4f6124f00a6590d7151832b5f170 (diff) | |
| download | linux-stable-36fd385ae2ca04a95e34f52a188e3aaf985e757f.tar.gz linux-stable-36fd385ae2ca04a95e34f52a188e3aaf985e757f.tar.bz2 linux-stable-36fd385ae2ca04a95e34f52a188e3aaf985e757f.zip | |
riscv: uaccess: fix type of 0 variable on error in get_user()
commit b9b916aee6715cd7f3318af6dc360c4729417b94 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/riscv')
| -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 855450bed9f5..ec0cab9fbddd 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) \ |