mtd: spi-nor-core: Check return value of write_enable() in spi_nor_erase()

The spi_nor_erase() function does not check return value of the
write_enable() call. Fix this.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Tested-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>

diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c
index 6da7dc3..6231ec5 100644 (file)
--- a/drivers/mtd/spi/spi-nor-core.c
+++ b/drivers/mtd/spi/spi-nor-core.c
@@ -931,7 +931,9 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
                if (ret < 0)
                        goto erase_err;
 #endif
-               write_enable(nor);
+               ret = write_enable(nor);
+               if (ret < 0)
+                       goto erase_err;
 
                ret = spi_nor_erase_sector(nor, addr);
                if (ret < 0)