diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c index 83cc60e8f607..5d1fc7b1b0a3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c @@ -745,7 +745,8 @@ static int iwl_print_event_log(struct iwl_trans *trans, u32 start_idx, /* Make sure device is powered up for SRAM reads */ spin_lock_irqsave(&trans->reg_lock, reg_flags); - iwl_grab_nic_access(trans); + if (unlikely(!iwl_grab_nic_access(trans))) + goto out_unlock; /* Set starting address; reads will auto-increment */ iwl_write32(trans, HBUS_TARG_MEM_RADDR, ptr); @@ -785,6 +786,7 @@ static int iwl_print_event_log(struct iwl_trans *trans, u32 start_idx, /* Allow device to power down */ iwl_release_nic_access(trans); +out_unlock: spin_unlock_irqrestore(&trans->reg_lock, reg_flags); return pos; } |