clk: ti: Check kzalloc() for failures

smatch reports a failure to check kzalloc() here:

drivers/clk/ti/clk.c:232
omap2_clk_provider_init() error: potential null dereference 'io'.
(kzalloc returns null)

Check for an allocation failure and return -ENOMEM.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 3343bde..521e330 100644 (file)
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -227,6 +227,8 @@ int __init omap2_clk_provider_init(struct device_node *parent, int index,
        clocks_node_ptr[index] = clocks;
 
        io = kzalloc(sizeof(*io), GFP_KERNEL);
+       if (!io)
+               return -ENOMEM;
 
        io->regmap = syscon;
        io->mem = mem;