From mboxrd@z Thu Jan 1 00:00:00 1970 From: jeremy.linton@arm.com (Jeremy Linton) Date: Fri, 1 Jul 2016 10:28:05 -0500 Subject: [PATCH 09/11] arm64: pmu: Add routines for detecting differing PMU types in the system In-Reply-To: <87mvm1e9ye.fsf@e105922-lin.cambridge.arm.com> References: <1466529109-21715-1-git-send-email-jeremy.linton@arm.com> <1466529109-21715-10-git-send-email-jeremy.linton@arm.com> <87mvm1e9ye.fsf@e105922-lin.cambridge.arm.com> Message-ID: <57768C05.1050509@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 07/01/2016 08:58 AM, Punit Agrawal wrote: (trimming) >> + if (!pmu) { >> + pr_warn("Unable to allocate pmu_types\n"); > > Bail out with error if the memory can't be allocated. Otherwise, we risk > silently failing to register a PMU type. Reading this again, I think I misunderstood what you were saying.. Aka, this should be pr_error() not that the error handing is failing to catch the failure. Anyway, I will promote this.