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R. Silva" , linux-arm-kernel@lists.infradead.org (moderated list:ARM/LPC18XX ARCHITECTURE), linux-kernel@vger.kernel.org (open list), linux-hardening@vger.kernel.org (open list:KERNEL HARDENING (not covered by other areas):Keyword:\b__counted_by(_le|_be)?\b) Subject: [PATCH] clk-lpc18xx-ccu: kzalloc + kcalloc to kzalloc_flex Date: Thu, 5 Mar 2026 19:25:40 -0800 Message-ID: <20260306032540.47815-1-rosenp@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Simplifies allocation by using a flexible array member. Also allows using __counted_by for extra runtime analysis. Signed-off-by: Rosen Penev --- drivers/clk/nxp/clk-lpc18xx-ccu.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/clk/nxp/clk-lpc18xx-ccu.c b/drivers/clk/nxp/clk-lpc18xx-ccu.c index dcb6d0c0b41a..3793e701835f 100644 --- a/drivers/clk/nxp/clk-lpc18xx-ccu.c +++ b/drivers/clk/nxp/clk-lpc18xx-ccu.c @@ -27,8 +27,8 @@ #define CCU_BRANCH_HAVE_DIV2 BIT(1) struct lpc18xx_branch_clk_data { - const char **name; int num; + const char *name[] __counted_by(num); }; struct lpc18xx_clk_branch { @@ -266,6 +266,7 @@ static void __init lpc18xx_ccu_init(struct device_node *np) { struct lpc18xx_branch_clk_data *clk_data; void __iomem *reg_base; + size_t size; int i, ret; reg_base = of_iomap(np, 0); @@ -274,19 +275,14 @@ static void __init lpc18xx_ccu_init(struct device_node *np) return; } - clk_data = kzalloc_obj(*clk_data); + size = of_property_count_strings(np, "clock-names"); + clk_data = kzalloc_flex(*clk_data, name, size); if (!clk_data) { iounmap(reg_base); return; } - clk_data->num = of_property_count_strings(np, "clock-names"); - clk_data->name = kcalloc(clk_data->num, sizeof(char *), GFP_KERNEL); - if (!clk_data->name) { - iounmap(reg_base); - kfree(clk_data); - return; - } + clk_data->num = size; for (i = 0; i < clk_data->num; i++) { ret = of_property_read_string_index(np, "clock-names", i, -- 2.53.0