diff options
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/ti/wlcore/debugfs.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/net/wireless/ti/wlcore/debugfs.c b/drivers/net/wireless/ti/wlcore/debugfs.c index 3d39784d639b..c86bb00c2488 100644 --- a/drivers/net/wireless/ti/wlcore/debugfs.c +++ b/drivers/net/wireless/ti/wlcore/debugfs.c @@ -1064,14 +1064,16 @@ static ssize_t dev_mem_read(struct file *file, mutex_lock(&wl->mutex); - if (unlikely(wl->state != WLCORE_STATE_ON)) { + if (unlikely(wl->state == WLCORE_STATE_OFF)) { ret = -EFAULT; goto skip_read; } - ret = wl1271_ps_elp_wakeup(wl); - if (ret < 0) - goto skip_read; + /* + * Don't fail if elp_wakeup returns an error, so the device's memory + * could be read even if the FW crashed + */ + wl1271_ps_elp_wakeup(wl); /* store current partition and switch partition */ memcpy(&old_part, &wl->curr_part, sizeof(old_part)); @@ -1149,14 +1151,16 @@ static ssize_t dev_mem_write(struct file *file, const char __user *user_buf, mutex_lock(&wl->mutex); - if (unlikely(wl->state != WLCORE_STATE_ON)) { + if (unlikely(wl->state == WLCORE_STATE_OFF)) { ret = -EFAULT; goto skip_write; } - ret = wl1271_ps_elp_wakeup(wl); - if (ret < 0) - goto skip_write; + /* + * Don't fail if elp_wakeup returns an error, so the device's memory + * could be read even if the FW crashed + */ + wl1271_ps_elp_wakeup(wl); /* store current partition and switch partition */ memcpy(&old_part, &wl->curr_part, sizeof(old_part)); |