powerpc: 512x: Fix mpc5121_clk_get()

If try_module_get() fails, mpc5121_clk_get() might return
a wrong clock.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Anatolij Gustschin <agust@denx.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c
index 1d8700ff60b..9f771e05457 100644
--- a/arch/powerpc/platforms/512x/clock.c
+++ b/arch/powerpc/platforms/512x/clock.c
@@ -54,14 +54,16 @@ static DEFINE_MUTEX(clocks_mutex);
 static struct clk *mpc5121_clk_get(struct device *dev, const char *id)
 {
         struct clk *p, *clk = ERR_PTR(-ENOENT);
-        int dev_match = 0;
-        int id_match = 0;
+        int dev_match;
+        int id_match;
 
         if (dev == NULL || id == NULL)
                 return clk;
 
         mutex_lock(&clocks_mutex);
         list_for_each_entry(p, &clocks, node) {
+                dev_match = id_match = 0;
+
                 if (dev == p->dev)
                         dev_match++;
                 if (strcmp(id, p->name) == 0)