4.19-stable review patch. If anyone has any objections, please let me know.
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From: Luiz Augusto von Dentz luiz.von.dentz@intel.com
[ Upstream commit dcda165706b9fbfd685898d46a6749d7d397e0c0 ]
This fixes the following warnings:
net/bluetooth/hci_core.c: In function ‘hci_register_dev’: net/bluetooth/hci_core.c:2620:54: warning: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 5 [-Wformat-truncation=] 2620 | snprintf(hdev->name, sizeof(hdev->name), "hci%d", id); | ^~ net/bluetooth/hci_core.c:2620:50: note: directive argument in the range [0, 2147483647] 2620 | snprintf(hdev->name, sizeof(hdev->name), "hci%d", id); | ^~~~~~~ net/bluetooth/hci_core.c:2620:9: note: ‘snprintf’ output between 5 and 14 bytes into a destination of size 8 2620 | snprintf(hdev->name, sizeof(hdev->name), "hci%d", id); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- include/net/bluetooth/hci_core.h | 2 +- net/bluetooth/hci_core.c | 8 +++++--- 2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 464a78200a31f..d3503f8c054ee 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -209,7 +209,7 @@ struct hci_dev { struct list_head list; struct mutex lock;
- char name[8]; + const char *name; unsigned long flags; __u16 id; __u8 bus; diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 9fdc772ab32ea..4d89e38dceec3 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3193,7 +3193,11 @@ int hci_register_dev(struct hci_dev *hdev) if (id < 0) return id;
- snprintf(hdev->name, sizeof(hdev->name), "hci%d", id); + error = dev_set_name(&hdev->dev, "hci%u", id); + if (error) + return error; + + hdev->name = dev_name(&hdev->dev); hdev->id = id;
BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); @@ -3215,8 +3219,6 @@ int hci_register_dev(struct hci_dev *hdev) if (!IS_ERR_OR_NULL(bt_debugfs)) hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
- dev_set_name(&hdev->dev, "%s", hdev->name); - error = device_add(&hdev->dev); if (error < 0) goto err_wqueue;