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authorTobias Klauser <tklauser@distanz.ch>2017-01-12 16:53:11 +0100
committerIngo Molnar <mingo@kernel.org>2017-01-14 09:32:06 +0100
commit453828625731d0ba7218242ef6ec88f59408f368 (patch)
treeb5a17e5faf2e3a989467d1ff631021293f5fbbe7 /arch/x86/mm/mpx.c
parent695085b4bc7603551db0b3da897b8bf9893ca218 (diff)
x86/mpx: Use compatible types in comparison to fix sparse error
info->si_addr is of type void __user *, so it should be compared against something from the same address space. This fixes the following sparse error: arch/x86/mm/mpx.c:296:27: error: incompatible types in comparison expression (different address spaces) Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/mm/mpx.c')
-rw-r--r--arch/x86/mm/mpx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 324e5713d386..af59f808742f 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -293,7 +293,7 @@ siginfo_t *mpx_generate_siginfo(struct pt_regs *regs)
* We were not able to extract an address from the instruction,
* probably because there was something invalid in it.
*/
- if (info->si_addr == (void *)-1) {
+ if (info->si_addr == (void __user *)-1) {
err = -EINVAL;
goto err_out;
}