V4L/DVB: stv0900: dereference of state->internal in fe_stv0900_error stv0900_init_internal()
state->internal allocation may fail as well as the allocation of stv0900_first_inode or new_node->next_inode in append_internal(). Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -1384,7 +1384,14 @@ static enum fe_stv0900_error stv0900_init_internal(struct dvb_frontend *fe,
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} else {
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state->internal = kmalloc(sizeof(struct stv0900_internal),
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GFP_KERNEL);
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if (state->internal == NULL)
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return STV0900_INVALID_HANDLE;
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temp_int = append_internal(state->internal);
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if (temp_int == NULL) {
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kfree(state->internal);
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state->internal = NULL;
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return STV0900_INVALID_HANDLE;
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}
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state->internal->dmds_used = 1;
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state->internal->i2c_adap = state->i2c_adap;
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state->internal->i2c_addr = state->config->demod_address;
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