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gcc points out an uninialized pointer dereference that could happen if we ever get to recv_ishtp_cl_msg_dma() or recv_ishtp_cl_msg() with an empty &dev->read_list: drivers/hid/intel-ish-hid/ishtp/client.c: In function 'recv_ishtp_cl_msg_dma': drivers/hid/intel-ish-hid/ishtp/client.c:1049:3: error: 'cl' may be used uninitialized in this function [-Werror=maybe-uninitialized] The warning only appeared in very few randconfig builds, as the spinlocks tend to prevent gcc from tracing the variables. I only saw it in configurations that had neither SMP nor LOCKDEP enabled. As we can see, we only enter the case if 'complete_rb' is non-NULL, and then 'cl' is known to point to complete_rb->cl. Adding another initialization to the same pointer is harmless here and makes it clear to the compiler that the behavior is well-defined. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> |
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| .. | ||
| ipc | ||
| ishtp | ||
| ishtp-hid-client.c | ||
| ishtp-hid.c | ||
| ishtp-hid.h | ||
| Kconfig | ||
| Makefile | ||