[PATCH 1/2] staging: gdm72xx: fix memory leak

From: Sudip Mukherjee
Date: Mon Sep 07 2015 - 08:38:37 EST


We were successfully requesting the firmware but on error it was not
being released.

Signed-off-by: Sudip Mukherjee <sudip@xxxxxxxxxxxxxxx>
---
drivers/staging/gdm72xx/usb_boot.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/gdm72xx/usb_boot.c b/drivers/staging/gdm72xx/usb_boot.c
index 3ccc447..50fbec3 100644
--- a/drivers/staging/gdm72xx/usb_boot.c
+++ b/drivers/staging/gdm72xx/usb_boot.c
@@ -159,8 +159,10 @@ int usb_boot(struct usb_device *usbdev, u16 pid)
}

tx_buf = kmalloc(DOWNLOAD_SIZE, GFP_KERNEL);
- if (tx_buf == NULL)
+ if (tx_buf == NULL) {
+ release_firmware(firm);
return -ENOMEM;
+ }

if (firm->size < sizeof(hdr)) {
dev_err(&usbdev->dev, "Cannot read the image info.\n");
@@ -285,8 +287,10 @@ static int em_download_image(struct usb_device *usbdev, const char *img_name,
}

buf = kmalloc(DOWNLOAD_CHUCK + pad_size, GFP_KERNEL);
- if (buf == NULL)
+ if (buf == NULL) {
+ release_firmware(firm);
return -ENOMEM;
+ }

strcpy(buf+pad_size, type_string);
ret = gdm_wibro_send(usbdev, buf, strlen(type_string)+pad_size);
--
1.9.1

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