https://github.com/torvalds/linux
Revision a7227a0faa117d0bc532aea546ae5ac5f89e8ed7 authored by Guennadi Liakhovetski on 23 November 2012, 19:55:06 UTC, committed by Rafael J. Wysocki on 23 November 2012, 19:55:06 UTC
dev_pm_qos_add_request() can return 0, 1, or a negative error code, therefore the correct error test is "if (error < 0)." Checking just for non-zero return code leads to erroneous setting of the req->dev pointer to NULL, which then leads to a repeated call to dev_pm_qos_add_ancestor_request() in st1232_ts_irq_handler(). This in turn leads to an Oops, when the I2C host adapter is unloaded and reloaded again because of the inconsistent state of its QoS request list. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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History 
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Tip revision: a7227a0faa117d0bc532aea546ae5ac5f89e8ed7 authored by Guennadi Liakhovetski on 23 November 2012, 19:55:06 UTC
PM / QoS: fix wrong error-checking condition
PM / QoS: fix wrong error-checking condition
Tip revision: a7227a0
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 1.1 KB |
| .mailmap | -rw-r--r-- | 4.4 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 92.7 KB |
| Kbuild | -rw-r--r-- | 2.5 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 224.5 KB |
| Makefile | -rw-r--r-- | 46.6 KB |
| README | -rw-r--r-- | 18.2 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.3 KB |
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