[SPARC64]: Fix 32-bit execve out_mm error path.

Do not pass a NULL mm to mmdrop().

diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c
index 7e92f4f9456f66bfa353519657fc55e8f847ceb6..62c794535830565ffa21d602ca5420fcd7ca6d43 100644 (file)
--- a/arch/sparc64/kernel/sys_sparc32.c
+++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -2023,7 +2023,8 @@ out:
                security_bprm_free(&bprm);
 
 out_mm:
-       mmdrop(bprm.mm);
+       if (bprm.mm)
+               mmdrop(bprm.mm);
 
 out_file:
        if (bprm.file) {