https://github.com/torvalds/linux
This patch prevents the system from crashing when unloading the ISM module. How to reproduce: Attach an ISM device and execute 'rmmod ism'. Error-Log: - Trying to free already-free IRQ 0 - WARNING: CPU: 1 PID: 966 at kernel/irq/manage.c:1890 free_irq+0x140/0x540 After calling ism_dev_exit() for each ISM device in the exit routine, pci_unregister_driver() will execute ism_remove() for each ISM device. Because ism_remove() also calls ism_dev_exit(), free_irq(pci_irq_vector(pdev, 0), ism) is called twice for each ISM device. This results in a crash with the error 'Trying to free already-free IRQ'. In the exit routine, it is enough to call pci_unregister_driver() because it ensures that ism_dev_exit() is called once per ISM device. Cc: <stable@vger.kernel.org> # 6.3+ Fixes: 89e7d2ba61b7 ("net/ism: Add new API for client registration") Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Julian Ruess <julianr@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- v2.6.19-rc2
- v2.6.19-rc1
- v2.6.19
- v2.6.18-rc7
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- v2.6.18
- v2.6.17-rc6
- v2.6.17-rc5
- v2.6.17-rc4
- v2.6.17-rc3
- v2.6.17-rc2
- v2.6.17-rc1
- v2.6.17
- v2.6.16-rc6
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- v2.6.16-rc4
- v2.6.16-rc3
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- v2.6.15
- v2.6.14-rc5
- v2.6.14-rc4
- v2.6.14-rc3
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- v2.6.14
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- v2.6.12-rc6
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- v2.6.12-rc4
- v2.6.12-rc3
- v2.6.12-rc2
- v2.6.12
- v2.6.11-tree
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s390/ism: Fix trying to free already-freed IRQ by repeated ism_dev_exit()
File | Mode | Size |
---|---|---|
alloc | ||
bindings | ||
kernel | ||
macros | ||
uapi | ||
.gitignore | -rw-r--r-- | 139 bytes |
Makefile | -rw-r--r-- | 17.8 KB |
bindgen_parameters | -rw-r--r-- | 691 bytes |
build_error.rs | -rw-r--r-- | 1.3 KB |
compiler_builtins.rs | -rw-r--r-- | 1.9 KB |
exports.c | -rw-r--r-- | 862 bytes |
helpers.c | -rw-r--r-- | 4.3 KB |
Computing file changes ...