[ Upstream commit cb93b3e11d405f20a405a07482d01147ef4934a3 ]
Because platform_get_irq() could fail and return error irq.
Therefore, it might be better to check it if order to avoid the use of
error irq.
Fixes:
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| epic100.c | ||
| smc91c92_cs.c | ||
| smc91x.c | ||
| smc91x.h | ||
| smc911x.c | ||
| smc911x.h | ||
| smc9194.c | ||
| smc9194.h | ||
| smsc911x.c | ||
| smsc911x.h | ||
| smsc9420.c | ||
| smsc9420.h | ||