In ni_usb_init(), if ni_usb_setup_init() fails, the function returns
-EFAULT without freeing the allocated writes buffer, leading to a
memory leak.
Additionally, ni_usb_setup_init() returns 0 on failure, which causes
ni_usb_init() to return -EFAULT, an inappropriate error code for this
situation.
Fix the leak by freeing writes in the error path. Modify
ni_usb_setup_init() to return -EINVAL on failure and propagate this
error code in ni_usb_init().
Fixes: 4e127de14f ("staging: gpib: Add National Instruments USB GPIB driver")
Suggested-by: Greg KH <gregkh@linuxfoundation.org>
Suggested-by: Dave Penkler <dpenkler@gmail.com>
Co-developed-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Link: https://patch.msgid.link/20251230034546.929452-1-zilin@seu.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If ni_usb_receive_bulk_msg() succeeds but without reading 16 bytes, then
the error code needs to be set. The current code returns success.
Fixes: 4e127de14f ("staging: gpib: Add National Instruments USB GPIB driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/aSlMpbE4IrQuBGFS@stanley.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This accidentally returns 1 on error, but it should return negative
error codes.
Fixes: 9dde4559e9 ("staging: gpib: Add GPIB common core driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/aSlMnaT1M104NJb2@stanley.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move the gpib drivers out of staging and into the "real" part of the
kernel. This entails:
- Remove the gpib Kconfig menu and Makefile build rule from staging.
- Remove gpib/uapi from the header file search path in subdir-ccflags
of the gpib Makefile
- move the gpib/uapi files to include/uapi/linux
- Move the gpib tree out of staging to drivers.
- Remove the word "Linux" from the gpib Kconfig file.
- Add the gpib Kconfig menu and Makefile build rule to drivers
Signed-off-by: Dave Penkler <dpenkler@gmail.com>
Link: https://patch.msgid.link/20251117144021.23569-5-dpenkler@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
