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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 <mschmidt@redhat.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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1 parent 127d0a1 commit c0ea452e422a1fc78ec8c639df64012d0b8dbb4a @michich michich committed with davem330 Mar 15, 2012
Showing with 24 additions and 26 deletions.
  1. +24 −26 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;

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