[PATCH AUTOSEL 4.19 08/13] cxl: Fix a memory leak in an error handling path
From: Sasha Levin
Date: Sun Aug 14 2022 - 11:54:57 EST
From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
[ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ]
A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the
error handling path of afu_allocate_irqs().
Acked-by: Andrew Donnellan <ajd@xxxxxxxxxxxxx>
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Link: https://lore.kernel.org/r/ce5869418f5838187946eb6b11a52715a93ece3d.1657566849.git.christophe.jaillet@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/misc/cxl/irq.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c
index ce08a9f22308..0dbe78383f8f 100644
--- a/drivers/misc/cxl/irq.c
+++ b/drivers/misc/cxl/irq.c
@@ -353,6 +353,7 @@ int afu_allocate_irqs(struct cxl_context *ctx, u32 count)
out:
cxl_ops->release_irq_ranges(&ctx->irqs, ctx->afu->adapter);
+ bitmap_free(ctx->irq_bitmap);
afu_irq_name_free(ctx);
return -ENOMEM;
}
--
2.35.1