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From: Frederic Barrat <fbarrat@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, oohall@gmail.com
Subject: [PATCH] powerpc/powernv/pci: Fix typo when releasing DMA resources
Date: Wed, 19 Aug 2020 15:07:41 +0200	[thread overview]
Message-ID: <20200819130741.16769-1-fbarrat@linux.ibm.com> (raw)

Fix typo introduced during recent code cleanup, which could lead to
silently not freeing resources or oops message (on PCI hotplug or CAPI
reset).
Only impacts ioda2, the code path for ioda1 is correct.

Fixes: 01e12629af4e ("powerpc/powernv/pci: Add explicit tracking of the DMA setup state")
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
---
 arch/powerpc/platforms/powernv/pci-ioda.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index c9c25fb0783c..023a4f987bb2 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2705,7 +2705,7 @@ void pnv_pci_ioda2_release_pe_dma(struct pnv_ioda_pe *pe)
 	struct iommu_table *tbl = pe->table_group.tables[0];
 	int64_t rc;
 
-	if (pe->dma_setup_done)
+	if (!pe->dma_setup_done)
 		return;
 
 	rc = pnv_pci_ioda2_unset_window(&pe->table_group, 0);
-- 
2.26.2


             reply	other threads:[~2020-08-19 13:46 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-19 13:07 Frederic Barrat [this message]
2020-08-19 13:15 ` [PATCH] powerpc/powernv/pci: Fix typo when releasing DMA resources Oliver O'Halloran
2020-08-19 13:31   ` Frederic Barrat
2020-08-20  4:18 ` Michael Ellerman
2020-08-20  7:39   ` Frederic Barrat
2020-08-20 13:31 ` Michael Ellerman

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