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[Qemu-devel] [PATCH] pflash_cfi01: Fix warning caused by unreachable cod


From: Stefan Weil
Subject: [Qemu-devel] [PATCH] pflash_cfi01: Fix warning caused by unreachable code
Date: Sat, 1 Sep 2012 13:00:48 +0200

Report from smatch:
hw/pflash_cfi01.c:431 pflash_write(180) info: ignoring unreachable code.

Instead of removing the return statement after the switch statement,
the patch replaces the return statements in the switch statement by
break statements. Other switch statements in the same code do it also
like that.

Signed-off-by: Stefan Weil <address@hidden>
---
 hw/pflash_cfi01.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/pflash_cfi01.c b/hw/pflash_cfi01.c
index d1c7423..56ed33f 100644
--- a/hw/pflash_cfi01.c
+++ b/hw/pflash_cfi01.c
@@ -320,7 +320,7 @@ static void pflash_write(pflash_t *pfl, target_phys_addr_t 
offset,
         }
         pfl->wcycle++;
         pfl->cmd = cmd;
-        return;
+        break;
     case 1:
         switch (pfl->cmd) {
         case 0x10: /* Single Byte Program */
@@ -375,7 +375,7 @@ static void pflash_write(pflash_t *pfl, target_phys_addr_t 
offset,
         default:
             goto error_flash;
         }
-        return;
+        break;
     case 2:
         switch (pfl->cmd) {
         case 0xe8: /* Block write */
@@ -406,7 +406,7 @@ static void pflash_write(pflash_t *pfl, target_phys_addr_t 
offset,
         default:
             goto error_flash;
         }
-        return;
+        break;
     case 3: /* Confirm mode */
         switch (pfl->cmd) {
         case 0xe8: /* Block write */
@@ -422,7 +422,7 @@ static void pflash_write(pflash_t *pfl, target_phys_addr_t 
offset,
         default:
             goto error_flash;
         }
-        return;
+        break;
     default:
         /* Should never happen */
         DPRINTF("%s: invalid write state\n",  __func__);
-- 
1.7.10




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