From 4da1edcf8f226d53c02c6b0e3077d581115b30d0 Mon Sep 17 00:00:00 2001 From: Alex Dewar Date: Thu, 20 Aug 2020 18:21:18 +0100 Subject: memory: brcmstb_dpfe: Fix memory leak In brcmstb_dpfe_download_firmware(), memory is allocated to variable fw by firmware_request_nowarn(), but never released. Fix up to release fw on all return paths. Cc: Fixes: 2f330caff577 ("memory: brcmstb: Add driver for DPFE") Signed-off-by: Alex Dewar Acked-by: Markus Mayer Acked-by: Florian Fainelli Link: https://lore.kernel.org/r/20200820172118.781324-1-alex.dewar90@gmail.com Signed-off-by: Krzysztof Kozlowski --- drivers/memory/brcmstb_dpfe.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/memory/brcmstb_dpfe.c b/drivers/memory/brcmstb_dpfe.c index 60e8633b1175..e08528b12cbd 100644 --- a/drivers/memory/brcmstb_dpfe.c +++ b/drivers/memory/brcmstb_dpfe.c @@ -647,8 +647,10 @@ static int brcmstb_dpfe_download_firmware(struct brcmstb_dpfe_priv *priv) return (ret == -ENOENT) ? -EPROBE_DEFER : ret; ret = __verify_firmware(&init, fw); - if (ret) - return -EFAULT; + if (ret) { + ret = -EFAULT; + goto release_fw; + } __disable_dcpu(priv); @@ -667,18 +669,20 @@ static int brcmstb_dpfe_download_firmware(struct brcmstb_dpfe_priv *priv) ret = __write_firmware(priv->dmem, dmem, dmem_size, is_big_endian); if (ret) - return ret; + goto release_fw; ret = __write_firmware(priv->imem, imem, imem_size, is_big_endian); if (ret) - return ret; + goto release_fw; ret = __verify_fw_checksum(&init, priv, header, init.chksum); if (ret) - return ret; + goto release_fw; __enable_dcpu(priv); - return 0; +release_fw: + release_firmware(fw); + return ret; } static ssize_t generic_show(unsigned int command, u32 response[], -- cgit v1.2.3