[03/87] mtd: jedec_probe: initialise make sector erase command variable

From: Greg KH
Date: Mon Mar 21 2011 - 19:55:00 EST

2.6.37-stable review patch. If anyone has any objections, please let us know.


From: Antony Pavlov <antony@xxxxxxxxxxxx>

commit ceabebb2bd2672f709e4454e16bc6042732e2dfe upstream.

In the commit 08968041bef437ec363623cd3218c2b083537ada
(mtd: cfi_cmdset_0002: make sector erase command variable)
introdused a field sector_erase_cmd. In the same commit initialisation
of cfi->sector_erase_cmd made in cfi_chip_setup()
(file drivers/mtd/chips/cfi_probe.c), so the CFI chip has no problem:

cfi->cfi_mode = CFI_MODE_CFI;
cfi->sector_erase_cmd = CMD(0x30);

But for the JEDEC chips this initialisation is not carried out,
so the JEDEC chips have sector_erase_cmd == 0.

This patch adds the missing initialisation.

Signed-off-by: Antony Pavlov <antony@xxxxxxxxxxxx>
Acked-by: Guillaume LECERF <glecerf@xxxxxxxxx>
Signed-off-by: David Woodhouse <David.Woodhouse@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

drivers/mtd/chips/jedec_probe.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -1935,7 +1935,7 @@ static void jedec_reset(u32 base, struct

-static int cfi_jedec_setup(struct cfi_private *cfi, int index)
+static int cfi_jedec_setup(struct map_info *map, struct cfi_private *cfi, int index)
int i,num_erase_regions;
uint8_t uaddr;
@@ -1962,6 +1962,7 @@ static int cfi_jedec_setup(struct cfi_pr
cfi->cfiq->NumEraseRegions = jedec_table[index].nr_regions;
cfi->cfiq->DevSize = jedec_table[index].dev_size;
cfi->cfi_mode = CFI_MODE_JEDEC;
+ cfi->sector_erase_cmd = CMD(0x30);

for (i=0; i<num_erase_regions; i++){
cfi->cfiq->EraseRegionInfo[i] = jedec_table[index].regions[i];
@@ -2175,7 +2176,7 @@ static int jedec_probe_chip(struct map_i
"MTD %s(): matched device 0x%x,0x%x unlock_addrs: 0x%.4x 0x%.4x\n",
__func__, cfi->mfr, cfi->id,
cfi->addr_unlock1, cfi->addr_unlock2 );
- if (!cfi_jedec_setup(cfi, i))
+ if (!cfi_jedec_setup(map, cfi, i))
return 0;
goto ok_out;

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