diff options
| author | Srinivas Neeli <srinivas.neeli@xilinx.com> | 2022-02-08 21:50:53 +0530 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2022-02-24 08:26:04 +0100 |
| commit | 2206fcbc1090bdcf7058d8c9bbc1a147c7359cfa (patch) | |
| tree | 3cd706852a32e22e83eee6532ad3650105851983 /drivers/net/can/xilinx_can.c | |
| parent | 51ae468aa7e412315203d13ef387751f0c58c55c (diff) | |
can: xilinx_can: Add check for NAPI Poll function
Add check for NAPI poll function to avoid enabling interrupts
with out completing the NAPI call.
Link: https://lore.kernel.org/all/20220208162053.39896-1-srinivas.neeli@xilinx.com
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/xilinx_can.c')
| -rw-r--r-- | drivers/net/can/xilinx_can.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 1674b561c9a2..e562c5ab1149 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -1215,10 +1215,11 @@ static int xcan_rx_poll(struct napi_struct *napi, int quota) } if (work_done < quota) { - napi_complete_done(napi, work_done); - ier = priv->read_reg(priv, XCAN_IER_OFFSET); - ier |= xcan_rx_int_mask(priv); - priv->write_reg(priv, XCAN_IER_OFFSET, ier); + if (napi_complete_done(napi, work_done)) { + ier = priv->read_reg(priv, XCAN_IER_OFFSET); + ier |= xcan_rx_int_mask(priv); + priv->write_reg(priv, XCAN_IER_OFFSET, ier); + } } return work_done; } |