From: Letu Ren <fantasquex@gmail.com>
Date: Sun, 25 Jul 2021 13:45:12 +0000 (+0800)
Subject: net/qla3xxx: fix schedule while atomic in ql_wait_for_drvr_lock and ql_adapter_reset
X-Git-Tag: baikal/mips/sdk5.9~10437^2~15
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=e03e57dc5bffd1ec226fb67fa239d0feaa8fec2a;p=kernel.git

net/qla3xxx: fix schedule while atomic in ql_wait_for_drvr_lock and ql_adapter_reset

When calling the 'ql_wait_for_drvr_lock' and 'ql_adapter_reset', the driver
has already acquired the spin lock, so the driver should not call 'ssleep'
in atomic context.

This bug can be fixed by using 'mdelay' instead of 'ssleep'.

Reported-by: Letu Ren <fantasquex@gmail.com>
Signed-off-by: Letu Ren <fantasquex@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index 2376b2729633f..c00ad57575eab 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -154,7 +154,7 @@ static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev)
 				      "driver lock acquired\n");
 			return 1;
 		}
-		ssleep(1);
+		mdelay(1000);
 	} while (++i < 10);
 
 	netdev_err(qdev->ndev, "Timed out waiting for driver lock...\n");
@@ -3274,7 +3274,7 @@ static int ql_adapter_reset(struct ql3_adapter *qdev)
 		if ((value & ISP_CONTROL_SR) == 0)
 			break;
 
-		ssleep(1);
+		mdelay(1000);
 	} while ((--max_wait_time));
 
 	/*
@@ -3310,7 +3310,7 @@ static int ql_adapter_reset(struct ql3_adapter *qdev)
 						   ispControlStatus);
 			if ((value & ISP_CONTROL_FSR) == 0)
 				break;
-			ssleep(1);
+			mdelay(1000);
 		} while ((--max_wait_time));
 	}
 	if (max_wait_time == 0)