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由 Christian Krafft 提交于
When probing i2c-pca-isa writes to legacy ioports, which crashes the kernel if there is no device at that port. This patch adds a check_legacy_ioport call, so probe fails gracefully and thus prevents the oops. Signed-off-by: NChristian Krafft <krafft@de.ibm.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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