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| author | Zilin Guan <zilin@seu.edu.cn> | 2025-12-30 06:45:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-16 18:31:43 +0300 |
| commit | b89921eed8cf2d97250bac4be38dbcfbf048b586 (patch) | |
| tree | 86e4f33712a3079da597b256eb41a19f46c45f1d /include/linux/errqueue.h | |
| parent | 484e62252212c5b5fc62eaee5e4977143cb159c6 (diff) | |
| download | linux-b89921eed8cf2d97250bac4be38dbcfbf048b586.tar.xz | |
gpib: Fix memory leak in ni_usb_init()
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: 4e127de14fa7 ("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>
Diffstat (limited to 'include/linux/errqueue.h')
0 files changed, 0 insertions, 0 deletions