From: Geetha sowjanya <[email protected]>
[ Upstream commit ae2619dd4fccdad9876aa5f900bd85484179c50f ]
Current devlink code try to free already freed irqs as the
irq_allocate flag is not cleared after free leading to kernel
crash while removing rvu driver. The patch fixes the irq free
sequence and clears the irq_allocate flag on free.
Fixes: 7304ac4567bc ("octeontx2-af: Add mailbox IRQ and msg handlers")
Signed-off-by: Geetha sowjanya <[email protected]>
Signed-off-by: Hariprasad Kelam <[email protected]>
Signed-off-by: Sunil Kovvuri Goutham <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/net/ethernet/marvell/octeontx2/af/rvu.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
index e581091c09c4..02b4620f7368 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
@@ -1980,8 +1980,10 @@ static void rvu_unregister_interrupts(struct rvu *rvu)
INTR_MASK(rvu->hw->total_pfs) & ~1ULL);
for (irq = 0; irq < rvu->num_vec; irq++) {
- if (rvu->irq_allocated[irq])
+ if (rvu->irq_allocated[irq]) {
free_irq(pci_irq_vector(rvu->pdev, irq), rvu);
+ rvu->irq_allocated[irq] = false;
+ }
}
pci_free_irq_vectors(rvu->pdev);
--
2.30.1
