From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felipe Pena Subject: [PATCH v2] sound: soc: fsl: Fix memory leak in imx-audmux.c Date: Sat, 12 Oct 2013 19:35:06 -0300 Message-ID: <1381617306-18764-1-git-send-email-felipensp@gmail.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Fabio Estevam , Markus Pargmann , Bill Pemberton , Greg Kroah-Hartman Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Felipe Pena List-Id: alsa-devel@alsa-project.org When audmux_clk is used and clk_prepare_enable function succeed, the memory alloc'd to buf variable is leaked Signed-off-by: Felipe Pena --- sound/soc/fsl/imx-audmux.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c index d3bf71a..ac86993 100644 --- a/sound/soc/fsl/imx-audmux.c +++ b/sound/soc/fsl/imx-audmux.c @@ -66,13 +66,10 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { ssize_t ret; - char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + char *buf; int port = (int)file->private_data; u32 pdcr, ptcr; - if (!buf) - return -ENOMEM; - if (audmux_clk) { ret = clk_prepare_enable(audmux_clk); if (ret) @@ -85,6 +82,10 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf, if (audmux_clk) clk_disable_unprepare(audmux_clk); + buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + ret = snprintf(buf, PAGE_SIZE, "PDCR: %08x\nPTCR: %08x\n", pdcr, ptcr); -- 1.7.10.4