From: Jia-Ju Bai <baijiaju1990@gmail.com>
To: awalls@md.metrocast.net, mchehab@kernel.org
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Jia-Ju Bai <baijiaju1990@gmail.com>
Subject: [PATCH] media: pci: ivtv: Replace GFP_ATOMIC with GFP_KERNEL
Date: Fri, 27 Jul 2018 11:44:24 +0800 [thread overview]
Message-ID: <20180727034424.4405-1-baijiaju1990@gmail.com> (raw)
ivtv_probe() and ivtvfb_init_card() are never called in atomic context.
They call kzalloc() with GFP_ATOMIC, which is not necessary.
GFP_ATOMIC can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
---
drivers/media/pci/ivtv/ivtv-driver.c | 2 +-
drivers/media/pci/ivtv/ivtvfb.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
index 6b2ffdc96961..dd727098daf4 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -999,7 +999,7 @@ static int ivtv_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
int vbi_buf_size;
struct ivtv *itv;
- itv = kzalloc(sizeof(struct ivtv), GFP_ATOMIC);
+ itv = kzalloc(sizeof(struct ivtv), GFP_KERNEL);
if (itv == NULL)
return -ENOMEM;
itv->pdev = pdev;
diff --git a/drivers/media/pci/ivtv/ivtvfb.c b/drivers/media/pci/ivtv/ivtvfb.c
index 8e62b8be6529..1d7d10367d55 100644
--- a/drivers/media/pci/ivtv/ivtvfb.c
+++ b/drivers/media/pci/ivtv/ivtvfb.c
@@ -1178,7 +1178,7 @@ static int ivtvfb_init_card(struct ivtv *itv)
}
itv->osd_info = kzalloc(sizeof(struct osd_info),
- GFP_ATOMIC|__GFP_NOWARN);
+ GFP_KERNEL|__GFP_NOWARN);
if (itv->osd_info == NULL) {
IVTVFB_ERR("Failed to allocate memory for osd_info\n");
return -ENOMEM;
--
2.17.0
reply other threads:[~2018-07-27 3:44 UTC|newest]
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