From: Johan Hovold <johan@kernel.org>
To: Johan Hovold <johan@kernel.org>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 11/12] USB: serial: io_edgeport: replace atomic command allocations
Date: Fri, 23 Oct 2026 14:15:29 +0200 [thread overview]
Message-ID: <20261023121530.186541-12-johan@kernel.org> (raw)
In-Reply-To: <20261023121530.186541-1-johan@kernel.org>
With the line settings no longer being updated from the interrupt
completion handler there is no need for command URBs and buffers to be
allocated atomically.
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/usb/serial/io_edgeport.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index ebbe8c5370cd..d47c2295a7cf 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -2079,7 +2079,7 @@ static int send_iosp_ext_cmd(struct edgeport_port *edge_port,
int length = 0;
int status = 0;
- buffer = kmalloc(10, GFP_ATOMIC);
+ buffer = kmalloc(10, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
@@ -2114,7 +2114,7 @@ static int write_cmd_usb(struct edgeport_port *edge_port,
usb_serial_debug_data(dev, __func__, length, buffer);
/* Allocate our next urb */
- urb = usb_alloc_urb(0, GFP_ATOMIC);
+ urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb)
return -ENOMEM;
@@ -2125,8 +2125,7 @@ static int write_cmd_usb(struct edgeport_port *edge_port,
edge_port->commandPending = true;
usb_anchor_urb(urb, &edge_serial->cmd_anchor);
- status = usb_submit_urb(urb, GFP_ATOMIC);
-
+ status = usb_submit_urb(urb, GFP_KERNEL);
if (status) {
/* something went wrong */
dev_err(dev, "%s - usb_submit_urb(write command) failed, status = %d\n",
@@ -2183,7 +2182,7 @@ static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
}
/* Alloc memory for the string of commands. */
- cmdBuffer = kmalloc(0x100, GFP_ATOMIC);
+ cmdBuffer = kmalloc(0x100, GFP_KERNEL);
if (!cmdBuffer)
return -ENOMEM;
@@ -2277,7 +2276,7 @@ static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
}
/* Alloc memory for the string of commands. */
- cmdBuffer = kmalloc(0x10, GFP_ATOMIC);
+ cmdBuffer = kmalloc(0x10, GFP_KERNEL);
if (cmdBuffer == NULL)
return -ENOMEM;
--
2.55.0
next prev parent reply other threads:[~2026-10-23 12:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 12:15 [PATCH v2 00/12] USB: serial: io_edgeport: fixes and sync commands Johan Hovold
2026-10-23 12:15 ` [PATCH v2 01/12] USB: serial: io_edgeport: fix NULL-deref on early status Johan Hovold
2026-10-23 12:15 ` [PATCH v2 02/12] USB: serial: io_edgeport: fix potential close() use-after-free Johan Hovold
2026-10-23 12:15 ` [PATCH v2 03/12] USB: serial: io_edgeport: fix potential NULL-deref at open Johan Hovold
2026-10-23 12:15 ` [PATCH v2 04/12] USB: serial: io_edgeport: move initial termios update to open() Johan Hovold
2026-10-23 12:15 ` [PATCH v2 05/12] USB: serial: io_edgeport: fix potential fifo corruption Johan Hovold
2026-10-23 12:15 ` [PATCH v2 06/12] USB: serial: io_edgeport: fix potential use-after-free on disconnect Johan Hovold
2026-10-23 12:15 ` [PATCH v2 07/12] USB: serial: io_edgeport: serialise MCR accesses Johan Hovold
2026-10-23 12:15 ` [PATCH v2 08/12] USB: serial: io_edgeport: drop redundant sanity checks Johan Hovold
2026-10-23 12:15 ` [PATCH v2 09/12] USB: serial: io_edgeport: drop redundant open " Johan Hovold
2026-10-23 12:15 ` [PATCH v2 10/12] USB: serial: io_edgeport: deassert DTR/RTS on close() and B0 Johan Hovold
2026-10-23 12:15 ` Johan Hovold [this message]
2026-10-23 12:15 ` [PATCH v2 12/12] USB: serial: io_edgeport: switch to synchronous commands Johan Hovold
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