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mtd: maps: add missing iounmap() in error path 

This patch was triggered by the following Coccinelle error:

./drivers/mtd/maps/sc520cdp.c:246:3-9: \
	ERROR: missing iounmap; ioremap on line 242 \
	and execution via conditional on line 244

Since do_map_probe() is also invoked in this loop, it is also necessary to
map_destroy() any initialised struct mtd_info.

Signed-off-by: Luis Henriques <henrix@camandro.org>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Luis Henriques 2016-11-23 23:40:36 +00:00 committed by Brian Norris
parent 5fed67df87
commit 3502fbcc25
1 changed files with 7 additions and 1 deletions
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8
drivers/mtd/maps/sc520cdp.c
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@ -227,7 +227,7 @@ static void sc520cdp_setup_par(void)
static int __init init_sc520cdp(void) static int __init init_sc520cdp(void)
{ {
int i, devices_found = 0; int i, j, devices_found = 0;
#ifdef REPROGRAM_PAR #ifdef REPROGRAM_PAR
/* reprogram PAR registers so flash appears at the desired addresses */ /* reprogram PAR registers so flash appears at the desired addresses */
@ -243,6 +243,12 @@ static int __init init_sc520cdp(void)
if (!sc520cdp_map[i].virt) { if (!sc520cdp_map[i].virt) {
printk("Failed to ioremap_nocache\n"); printk("Failed to ioremap_nocache\n");
for (j = 0; j < i; j++) {
if (mymtd[j]) {
map_destroy(mymtd[j]);
iounmap(sc520cdp_map[j].virt);
}
}
return -EIO; return -EIO;
} }