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* [PATCH]X86:microcode: fix vfree()
@ 2009-06-07  5:18 Figo.zhang
  2009-06-07 14:01 ` Ingo Molnar
  0 siblings, 1 reply; 9+ messages in thread
From: Figo.zhang @ 2009-06-07  5:18 UTC (permalink / raw)
  To: Ingo Molnar; +Cc: Andrew Morton, Tigran Aivazian, lkml

 
vfree() does it's own 'NULL' check,so no need for check before
calling it.

Signed-off-by: Figo.zhang <figo1802@gmail.com>
---  
arch/x86/kernel/microcode_amd.c |   13 +++++--------
 1 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 453b579..fe577fd 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -257,10 +257,9 @@ static int install_equiv_cpu_table(const u8 *buf)
 
 static void free_equiv_cpu_table(void)
 {
-	if (equiv_cpu_table) {
-		vfree(equiv_cpu_table);
-		equiv_cpu_table = NULL;
-	}
+	vfree(equiv_cpu_table);
+	equiv_cpu_table = NULL;
+	
 }
 
 static int generic_load_microcode(int cpu, const u8 *data, size_t size)
@@ -293,8 +292,7 @@ static int generic_load_microcode(int cpu, const u8 *data, size_t size)
 
 		mc_header = (struct microcode_header_amd *)mc;
 		if (get_matching_microcode(cpu, mc, new_rev)) {
-			if (new_mc)
-				vfree(new_mc);
+			vfree(new_mc);
 			new_rev = mc_header->patch_id;
 			new_mc  = mc;
 		} else
@@ -306,8 +304,7 @@ static int generic_load_microcode(int cpu, const u8 *data, size_t size)
 
 	if (new_mc) {
 		if (!leftover) {
-			if (uci->mc)
-				vfree(uci->mc);
+			vfree(uci->mc);
 			uci->mc = new_mc;
 			pr_debug("microcode: CPU%d found a matching microcode "
 				 "update with version 0x%x (current=0x%x)\n",



^ permalink raw reply related	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2009-06-10 14:23 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-06-07  5:18 [PATCH]X86:microcode: fix vfree() Figo.zhang
2009-06-07 14:01 ` Ingo Molnar
2009-06-07 14:18   ` [PATCH RESEND]X86:microcode: " Figo.zhang
2009-06-07 14:21     ` Ingo Molnar
2009-06-07 14:25       ` Figo.zhang
2009-06-07 14:28         ` Ingo Molnar
2009-06-07 14:30       ` [PATCH v2]X86:microcode: " Figo.zhang
2009-06-07 14:42         ` [tip:x86/microcode] x86, microcode: Simplify vfree() use tip-bot for Figo.zhang
2009-06-10 14:23         ` [PATCH v2]X86:microcode: fix vfree() Figo.zhang

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