X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=compat_arch_x86.c;h=714201b01b78d9efbfaa110c9e27dfbb6e2a5557;hp=9cbd3c8c808d794ac5ad63292479b67e99a96ed4;hb=9d2614f07691a813a3c560a6c0bcd0a7be854ed5;hpb=a2e7bf9ce5de5113c7f59c380b0087e291cd603d

diff --git a/compat_arch_x86.c b/compat_arch_x86.c
index 9cbd3c8..714201b 100644
--- a/compat_arch_x86.c
+++ b/compat_arch_x86.c
@@ -122,10 +122,11 @@ unsigned long _compat_uatomic_set(void *addr, unsigned long _new, int len)
 		 * generate an illegal instruction. Cannot catch this with
 		 * linker tricks when optimizations are disabled.
 		 */
+		result = 0;
 		__asm__ __volatile__("ud2");
 	}
 	mutex_lock_signal_restore(&compat_mutex, &mask);
-	return _new;
+	return result;
 }
 
 unsigned long _compat_uatomic_xchg(void *addr, unsigned long _new, int len)
@@ -152,6 +153,7 @@ unsigned long _compat_uatomic_xchg(void *addr, unsigned long _new, int len)
 		 * generate an illegal instruction. Cannot catch this with
 		 * linker tricks when optimizations are disabled.
 		 */
+		retval = 0;	/* silence gcc warnings */
 		__asm__ __volatile__("ud2");
 	}
 	mutex_lock_signal_restore(&compat_mutex, &mask);
@@ -195,6 +197,7 @@ unsigned long _compat_uatomic_cmpxchg(void *addr, unsigned long old,
 		 * generate an illegal instruction. Cannot catch this with
 		 * linker tricks when optimizations are disabled.
 		 */
+		retval = 0;	/* silence gcc warnings */
 		__asm__ __volatile__("ud2");
 	}
 	mutex_lock_signal_restore(&compat_mutex, &mask);
@@ -275,6 +278,7 @@ unsigned long _compat_uatomic_add_return(void *addr, unsigned long v, int len)
 		 * generate an illegal instruction. Cannot catch this with
 		 * linker tricks when optimizations are disabled.
 		 */
+		result = 0;	/* silence gcc warnings */
 		__asm__ __volatile__("ud2");
 	}
 	mutex_lock_signal_restore(&compat_mutex, &mask);