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authorFelipe Pena <felipensp@gmail.com>2013-10-08 06:25:44 +0400
committerMike Turquette <mturquette@linaro.org>2013-10-08 09:43:27 +0400
commitf8fe36f6083a70270a7305f7740b124ff1e8aea7 (patch)
tree76e9295d55457953e2c9f597649ee664bf4de684 /drivers/clk
parent6cfc229d6f967041b5e1ee56a5bb87a500f31311 (diff)
downloadlinux-f8fe36f6083a70270a7305f7740b124ff1e8aea7.tar.xz
clk/zynq: Fix possible memory leak
The zynq_clk_register_fclk function can leak memory (fclk_lock) when unable to alloc memory for fclk_gate_lock Signed-off-by: Felipe Pena <felipensp@gmail.com> Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/zynq/clkc.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
index cc40fe64f2dc..10772aa72e4e 100644
--- a/drivers/clk/zynq/clkc.c
+++ b/drivers/clk/zynq/clkc.c
@@ -117,13 +117,19 @@ static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
goto err;
fclk_gate_lock = kmalloc(sizeof(*fclk_gate_lock), GFP_KERNEL);
if (!fclk_gate_lock)
- goto err;
+ goto err_fclk_gate_lock;
spin_lock_init(fclk_lock);
spin_lock_init(fclk_gate_lock);
mux_name = kasprintf(GFP_KERNEL, "%s_mux", clk_name);
+ if (!mux_name)
+ goto err_mux_name;
div0_name = kasprintf(GFP_KERNEL, "%s_div0", clk_name);
+ if (!div0_name)
+ goto err_div0_name;
div1_name = kasprintf(GFP_KERNEL, "%s_div1", clk_name);
+ if (!div1_name)
+ goto err_div1_name;
clk = clk_register_mux(NULL, mux_name, parents, 4,
CLK_SET_RATE_NO_REPARENT, fclk_ctrl_reg, 4, 2, 0,
@@ -147,6 +153,14 @@ static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
return;
+err_div1_name:
+ kfree(div0_name);
+err_div0_name:
+ kfree(mux_name);
+err_mux_name:
+ kfree(fclk_gate_lock);
+err_fclk_gate_lock:
+ kfree(fclk_lock);
err:
clks[fclk] = ERR_PTR(-ENOMEM);
}