Reviewed-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
On 01/27/2018 04:28 PM, Julia Lawall wrote:
Check the variable that was most recently initialized.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression x, y, f, g, e, m;
statement S1,S2,S3,S4;
@@
x = f(...);
if (\(<+...x...+>\&e\)) S1 else S2
(
x = g(...);
|
m = g(...,&x,...);
|
y = g(...);
*if (e)
S3 else S4
)
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>
---
drivers/firmware/tegra/bpmp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/tegra/bpmp.c b/drivers/firmware/tegra/bpmp.c
index a7f461f..96362b5 100644
--- a/drivers/firmware/tegra/bpmp.c
+++ b/drivers/firmware/tegra/bpmp.c
@@ -732,7 +732,7 @@ static int tegra_bpmp_probe(struct platform_device *pdev)
}
bpmp->rx.virt = gen_pool_dma_alloc(bpmp->rx.pool, 4096, &bpmp->rx.phys);
- if (!bpmp->rx.pool) {
+ if (!bpmp->rx.virt) {
dev_err(&pdev->dev, "failed to allocate from RX pool\n");
err = -ENOMEM;
goto free_tx;
--
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