Thread (3 messages) 3 messages, 3 authors, 2019-01-09

Re: [PATCH] clk: zynqmp: Fix memory allocation in zynqmp_clk_setup

From: Michal Simek <hidden>
Date: 2019-01-03 11:03:21
Also in: linux-clk, lkml

On 24. 12. 18 6:50, Gustavo A. R. Silva wrote:
quoted hunk ↗ jump to hunk
Fix memory allocation and use struct_size() in kzalloc().

Fixes: 3fde0e16d016 ("drivers: clk: Add ZynqMP clock driver")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <redacted>
---
 drivers/clk/zynqmp/clkc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/zynqmp/clkc.c b/drivers/clk/zynqmp/clkc.c
index f65cc0ff76ab..b0908ec62f73 100644
--- a/drivers/clk/zynqmp/clkc.c
+++ b/drivers/clk/zynqmp/clkc.c
@@ -669,8 +669,8 @@ static int zynqmp_clk_setup(struct device_node *np)
 	if (ret)
 		return ret;
 
-	zynqmp_data = kzalloc(sizeof(*zynqmp_data) + sizeof(*zynqmp_data) *
-						clock_max_idx, GFP_KERNEL);
+	zynqmp_data = kzalloc(struct_size(zynqmp_data, hws, clock_max_idx),
+			      GFP_KERNEL);
 	if (!zynqmp_data)
 		return -ENOMEM;
 
Looks good. Description could be maybe more verbose that you are fixing
issue that it should be sizeof(struct clk_hw) instead of sizeof(struct
clk_hw_onecell_data)
Otherwise
Acked-by: Michal Simek <redacted>

Thanks,
Michal

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