From c0ea452e422a1fc78ec8c639df64012d0b8dbb4a Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Thu, 15 Mar 2012 14:08:29 +0000 Subject: [PATCH] bnx2x: fix memory leak in bnx2x_init_firmware() When cycling the interface down and up, bnx2x_init_firmware() knows that the firmware is already loaded, but nevertheless it allocates certain arrays anew (init_data, init_ops, init_ops_offsets, iro_arr). The old arrays are leaked. Fix the leaks by returning early if the firmware was already loaded. Because if the firmware is loaded, so are the arrays. Signed-off-by: Michal Schmidt Acked-by: Eilon Greenstein Signed-off-by: David S. Miller --- .../net/ethernet/broadcom/bnx2x/bnx2x_main.c | 50 +++++++++---------- 1 file changed, 24 insertions(+), 26 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 00ff62f92858..b69f8762b339 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -10824,38 +10824,36 @@ do { \ int bnx2x_init_firmware(struct bnx2x *bp) { + const char *fw_file_name; struct bnx2x_fw_file_hdr *fw_hdr; int rc; + if (bp->firmware) + return 0; - if (!bp->firmware) { - const char *fw_file_name; - - if (CHIP_IS_E1(bp)) - fw_file_name = FW_FILE_NAME_E1; - else if (CHIP_IS_E1H(bp)) - fw_file_name = FW_FILE_NAME_E1H; - else if (!CHIP_IS_E1x(bp)) - fw_file_name = FW_FILE_NAME_E2; - else { - BNX2X_ERR("Unsupported chip revision\n"); - return -EINVAL; - } - BNX2X_DEV_INFO("Loading %s\n", fw_file_name); + if (CHIP_IS_E1(bp)) + fw_file_name = FW_FILE_NAME_E1; + else if (CHIP_IS_E1H(bp)) + fw_file_name = FW_FILE_NAME_E1H; + else if (!CHIP_IS_E1x(bp)) + fw_file_name = FW_FILE_NAME_E2; + else { + BNX2X_ERR("Unsupported chip revision\n"); + return -EINVAL; + } + BNX2X_DEV_INFO("Loading %s\n", fw_file_name); - rc = request_firmware(&bp->firmware, fw_file_name, - &bp->pdev->dev); - if (rc) { - BNX2X_ERR("Can't load firmware file %s\n", - fw_file_name); - goto request_firmware_exit; - } + rc = request_firmware(&bp->firmware, fw_file_name, &bp->pdev->dev); + if (rc) { + BNX2X_ERR("Can't load firmware file %s\n", + fw_file_name); + goto request_firmware_exit; + } - rc = bnx2x_check_firmware(bp); - if (rc) { - BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name); - goto request_firmware_exit; - } + rc = bnx2x_check_firmware(bp); + if (rc) { + BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name); + goto request_firmware_exit; } fw_hdr = (struct bnx2x_fw_file_hdr *)bp->firmware->data; -- 2.20.1