Merge branch 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...

[safe/jmp/linux-2.6] / arch / x86 / oprofile / op_model_ppro.c

diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index 3f1b81a..e9f80c7 100644 (file)
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -69,7 +69,7 @@ static void ppro_setup_ctrs(struct op_msrs const * const msrs)
        int i;
 
        if (!reset_value) {
-               reset_value = kmalloc(sizeof(unsigned) * num_counters,
+               reset_value = kmalloc(sizeof(reset_value[0]) * num_counters,
                                        GFP_ATOMIC);
                if (!reset_value)
                        return;
@@ -156,6 +156,8 @@ static void ppro_start(struct op_msrs const * const msrs)
        unsigned int low, high;
        int i;
 
+       if (!reset_value)
+               return;
        for (i = 0; i < num_counters; ++i) {
                if (reset_value[i]) {
                        CTRL_READ(low, high, msrs, i);
@@ -171,6 +173,8 @@ static void ppro_stop(struct op_msrs const * const msrs)
        unsigned int low, high;
        int i;
 
+       if (!reset_value)
+               return;
        for (i = 0; i < num_counters; ++i) {
                if (!reset_value[i])
                        continue;