[U-Boot] [PATCH v7 4/4] mtd, spi: Check if flash pointer is used

[Jagan Teki]

From: Heiko Schocher <hs at denx.de>

If flash pointer is used free it, before probing a new
flash and storing it in flash.

Signed-off-by: Heiko Schocher <hs at denx.de>
Tested-by: Jagannadh Teki <jteki at openedev.com>
Reviewed-by: Jagannadh Teki <jteki at openedev.com>
---
Changes in v7: none
Changes in v6:
- add comments from Jagan Teki:
  new patch in this patchserie, extract this piece
  of code into a new patch.

 common/cmd_sf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/common/cmd_sf.c b/common/cmd_sf.c
index 9bced29..aef8c2a 100644
--- a/common/cmd_sf.c
+++ b/common/cmd_sf.c
@@ -135,7 +135,12 @@ static int do_spi_flash_probe(int argc, char * const argv[])
 
 	flash = dev_get_uclass_priv(new);
 #else
+	if (flash)
+		spi_flash_free(flash);
+
 	new = spi_flash_probe(bus, cs, speed, mode);
+	flash = new;
+
 	if (!new) {
 		printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
 		return 1;
-- 
1.9.1