From f36d83a8cb7224f45fdfa1129a616dff56479a09 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 13 Nov 2010 13:01:56 -0600 Subject: staging: rtl8187se: Change panic to warn when RF switch turned off This driver issues a kernel panic over conditions that do not justify such drastic action. Change these to log entries with a stack dump. This patch fixes the system crash reported in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/674285. Signed-off-by: Larry Finger Reported-and-Tested-by: Robie Basik Cc: Stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8187se/r8185b_init.c | 30 ++++++++++++++++++++++-------- 1 file changed, 22 insertions(+), 8 deletions(-) (limited to 'drivers/staging/rtl8187se/r8185b_init.c') diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c index 46000d72f4c..3bdf9b31cc4 100644 --- a/drivers/staging/rtl8187se/r8185b_init.c +++ b/drivers/staging/rtl8187se/r8185b_init.c @@ -264,8 +264,12 @@ HwHSSIThreeWire( udelay(10); } - if (TryCnt == TC_3W_POLL_MAX_TRY_CNT) - panic("HwThreeWire(): CmdReg: %#X RE|WE bits are not clear!!\n", u1bTmp); + if (TryCnt == TC_3W_POLL_MAX_TRY_CNT) { + printk(KERN_ERR "rtl8187se: HwThreeWire(): CmdReg:" + " %#X RE|WE bits are not clear!!\n", u1bTmp); + dump_stack(); + return 0; + } /* RTL8187S HSSI Read/Write Function */ u1bTmp = read_nic_byte(dev, RF_SW_CONFIG); @@ -298,13 +302,23 @@ HwHSSIThreeWire( int idx; int ByteCnt = nDataBufBitCnt / 8; /* printk("%d\n",nDataBufBitCnt); */ - if ((nDataBufBitCnt % 8) != 0) - panic("HwThreeWire(): nDataBufBitCnt(%d) should be multiple of 8!!!\n", - nDataBufBitCnt); + if ((nDataBufBitCnt % 8) != 0) { + printk(KERN_ERR "rtl8187se: " + "HwThreeWire(): nDataBufBitCnt(%d)" + " should be multiple of 8!!!\n", + nDataBufBitCnt); + dump_stack(); + nDataBufBitCnt += 8; + nDataBufBitCnt &= ~7; + } - if (nDataBufBitCnt > 64) - panic("HwThreeWire(): nDataBufBitCnt(%d) should <= 64!!!\n", - nDataBufBitCnt); + if (nDataBufBitCnt > 64) { + printk(KERN_ERR "rtl8187se: HwThreeWire():" + " nDataBufBitCnt(%d) should <= 64!!!\n", + nDataBufBitCnt); + dump_stack(); + nDataBufBitCnt = 64; + } for (idx = 0; idx < ByteCnt; idx++) write_nic_byte(dev, (SW_3W_DB0+idx), *(pDataBuf+idx)); -- cgit v1.2.3