[PATCH linu-next V2] mm/fault: fix comparing pointer to 0

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From: Xu Panda <xu.panda@xxxxxxxxxx>

Do not use assignment in if condition,
and comparing pointer whith NULL instead of comparing pointer to 0.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Xu Panda <xu.panda@xxxxxxxxxx>
---
 arch/alpha/mm/fault.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index ef427a6bdd1a..bb3fe2949313 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -194,7 +194,8 @@ do_page_fault(unsigned long address, unsigned long
mmcsr,

  no_context:
        /* Are we prepared to handle this fault as an exception?  */
-       if ((fixup = search_exception_tables(regs->pc)) != 0) {
+       fixup = search_exception_tables(regs->pc);
+       if (fixup != NULL) {
                unsigned long newpc;
                newpc = fixup_exception(dpf_reg, fixup, regs->pc);
                regs->pc = newpc;
-- 
2.15.2




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