forked from Imagelibrary/rtems
grtc.c: Fix Dereference before null check (CID #1399840)
CID 1399840: Dereference before null check in grtc_ioctl(). Closes #4252
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@@ -1532,7 +1532,7 @@ static rtems_device_driver grtc_ioctl(rtems_device_major_number major, rtems_dev
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struct grtc_priv *pDev;
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struct drvmgr_dev *dev;
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rtems_libio_ioctl_args_t *ioarg = (rtems_libio_ioctl_args_t *)arg;
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unsigned int *data = ioarg->buffer;
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unsigned int *data;
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int status,frm_len,i,ret;
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struct grtc_ioc_buf_params *buf_arg;
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struct grtc_ioc_config *cfg;
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@@ -1556,6 +1556,8 @@ static rtems_device_driver grtc_ioctl(rtems_device_major_number major, rtems_dev
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if (!ioarg)
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return RTEMS_INVALID_NAME;
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data = ioarg->buffer;
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ioarg->ioctl_return = 0;
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switch(ioarg->command) {
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case GRTC_IOC_START:
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