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can: xilinx_can: Add check for NAPI Poll function

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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>
This commit is contained in:
Srinivas Neeli 2022-02-08 21:50:53 +05:30 committed by Marc Kleine-Budde
parent 51ae468aa7
commit 2206fcbc10
1 changed files with 5 additions and 4 deletions
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9
drivers/net/can/xilinx_can.c
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@ -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;
}