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Wed, 6 May 2020 14:55:17 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 84DBFB2064; Wed, 6 May 2020 14:55:17 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5DC40B2065; Wed, 6 May 2020 14:55:17 +0000 (GMT) Received: from localhost (unknown [9.85.174.76]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 6 May 2020 14:55:17 +0000 (GMT) From: Nathan Lynch To: Sam Bobroff Subject: Re: [PATCH v4 1/2] powerpc/eeh: fix pseries_eeh_configure_bridge() In-Reply-To: <1b0a6010a647dc915816e44845b64d72066676a7.1588045502.git.sbobroff@linux.ibm.com> References: <1b0a6010a647dc915816e44845b64d72066676a7.1588045502.git.sbobroff@linux.ibm.com> Date: Wed, 06 May 2020 09:55:16 -0500 Message-ID: <87h7wt2jvv.fsf@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-05-06_07:2020-05-05, 2020-05-06 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 suspectscore=1 bulkscore=0 spamscore=0 mlxlogscore=999 malwarescore=0 priorityscore=1501 phishscore=0 clxscore=1015 impostorscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2005060113 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, Oliver O'Halloran Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Sam Bobroff writes: > If a device is hot unplgged during EEH recovery, it's possible for the > RTAS call to ibm,configure-pe in pseries_eeh_configure() to return > parameter error (-3), however negative return values are not checked > for and this leads to an infinite loop. > > Fix this by correctly bailing out on negative values. Reviewed-by: Nathan Lynch Thanks.