leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

w1: Fix bus counting in w1_get_bus

Browse Source 
Use uclass_first_device_check/uclass_next_device_check to correctly
count buses that fail to probe.

Fixes: d3e19cf919 ("w1: Add 1-Wire uclass")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Michal Suchanek 2022-10-12 21:57:57 +02:00 committed by Simon Glass
parent f426423471
commit 9244645f92
1 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/w1/w1-uclass.c
View File

@ -16,6 +16,7 @@
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <log.h>
#include <w1.h>
#include <w1-eeprom.h>
@ -182,24 +183,25 @@ static int w1_enumerate(struct udevice *bus)
int w1_get_bus(int busnum, struct udevice **busp)
{
int ret, i = 0;
struct udevice *dev;
for (ret = uclass_first_device(UCLASS_W1, &dev);
dev && !ret;
ret = uclass_next_device(&dev), i++) {
for (ret = uclass_first_device_check(UCLASS_W1, &dev);
dev;
ret = uclass_next_device_check(&dev), i++) {
if (i == busnum) {
if (ret) {
debug("Cannot probe w1 bus %d: %d (%s)\n",
busnum, ret, errno_str(ret));
return ret;
}
*busp = dev;
return 0;
}
}
if (!ret) {
debug("Cannot find w1 bus %d\n", busnum);
ret = -ENODEV;
}
debug("Cannot find w1 bus %d\n", busnum);
return ret;
return -ENODEV;
}
u8 w1_get_device_family(struct udevice *dev)