staging: ft1000: ft1000-usb: ft1000_hw.c: Fix a potential memory leak. (64ed8f51) · Commits · 戴 / test

Avoid allocate memory if we will exit the function. Was found by using a static code analysis program called cppcheck. Signed-off-by:

drivers/staging/ft1000/ft1000-usb/ft1000_hw.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -332,15 +332,15 @@ int card_send_command(struct ft1000_usb ft1000dev, void ptempbuffer,

		pr_debug("enter card_send_command... size=%d\n", size);

		ret = ft1000_read_register(ft1000dev, &temp, FT1000_REG_DOORBELL);
		if (ret)
		return ret;

		commandbuf = kmalloc(size + 2, GFP_KERNEL);
		if (!commandbuf)
		return -ENOMEM;
		memcpy((void )commandbuf + 2, (void )ptempbuffer, size);

		ret = ft1000_read_register(ft1000dev, &temp, FT1000_REG_DOORBELL);
		if (ret)
		return ret;

		if (temp & 0x0100)
		usleep_range(900, 1100);