mtd: spi-nor-core: Check for ctrlc() in spi_nor_erase()

May it possible to interrupt the spi_nor_erase() function.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
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 2c71866..a857599 100644 (file)
--- a/drivers/mtd/spi/spi-nor-core.c
+++ b/drivers/mtd/spi/spi-nor-core.c
@@ -929,6 +929,11 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
 
        while (len) {
                WATCHDOG_RESET();
+               if (ctrlc()) {
+                       addr_known = false;
+                       ret = -EINTR;
+                       goto erase_err;
+               }
 #ifdef CONFIG_SPI_FLASH_BAR
                ret = write_bar(nor, addr);
                if (ret < 0)