profile: Use vzalloc() rather than vmalloc() & memset()

There's no reason to memset() manually when we have vzalloc().

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: William Irwin <wli@holomorphy.com>
LKML-Reference: <alpine.LNX.2.00.1010302150310.1572@swampdragon.chaosbits.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/profile.c b/kernel/profile.c
index 66f841b..14c9f87 100644 (file)
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -126,11 +126,9 @@ int __ref profile_init(void)
        if (prof_buffer)
                return 0;
 
-       prof_buffer = vmalloc(buffer_bytes);
-       if (prof_buffer) {
-               memset(prof_buffer, 0, buffer_bytes);
+       prof_buffer = vzalloc(buffer_bytes);
+       if (prof_buffer)
                return 0;
-       }
 
        free_cpumask_var(prof_cpu_mask);
        return -ENOMEM;